Car electrical relays

At Global Parts, we offer a wide selection of original used car parts, including relays for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The relays we offer undergo quality control to ensure you receive a top-quality product.

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BMW E60 E87 E90 F10 F30 Relay Electrical Unit Black 4 Pin Tyco 6901469

Part no. 6901469

BMW E60 E87 E90 F10 F30 Relay Electrical Unit Black 4 Pin Tyco 6901469

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 Relay Make Contact White Green 8373700

Part no. 8373700

BMW E60 E63 E87 E90 E91 Relay Make Contact White Green 8373700

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690

Part no. 1742690

BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 5-Pin Black Relay Wiper 1472984

Part no. 1472984

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 5-Pin Black Relay Wiper 1472984

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E46 E39 E60 E81 E87 E90 E91 F10 F20 F30 Relay Make Contact Sky Blue 6915327

Part no. 6915327

BMW E46 E39 E60 E81 E87 E90 E91 F10 F20 F30 Relay Make Contact Sky Blue 6915327

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW X1 X3 X5 X6 Z4 Z8 Relay Changeover Function Green 6980177

Part no. 6980177

BMW X1 X3 X5 X6 Z4 Z8 Relay Changeover Function Green 6980177

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913

Part no. 9207913

BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW 1 3 4 Series F20 F21 F30 F31 F32 F33 Cooling Fan Control Unit Radiator

Part no. 7640508-2

BMW 1 3 4 Series F20 F21 F30 F31 F32 F33 Cooling Fan Control Unit Radiator

£28.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange 1378238

Part no. 1378238

BMW E60 E63 E87 E90 E91 Relay Make Contact Orange 1378238

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911

Part no. 1388911

BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mini Cooper R50 R56 R57 R60 Relay No Contact Taubenblau 6977982

Part no. 6977982

Mini Cooper R50 R56 R57 R60 Relay No Contact Taubenblau 6977982

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619

Part no. A0025422619-1

Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646

Part no. 8366646

BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646

£13.95

Free delivery: Mar 17

If paid before 14:00

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Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 9 Pins 038907281D

Part no. 038907281D

Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 9 Pins 038907281D

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W176 W204 W207 W166 Relay 4 Pin Grey Hella A0025428719

Part no. A0025428719

Mercedes W176 W204 W207 W166 Relay 4 Pin Grey Hella A0025428719

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302

Part no. 9198302

BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960

Part no. 8365960

BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960

£13.95

Free delivery: Mar 17

If paid before 14:00

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Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819

Part no. A0035422819

Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W168 W169 W245 Blue Relay 4-Pin Tyco A0025422519

Part no. A0025422519

Mercedes W168 W169 W245 Blue Relay 4-Pin Tyco A0025422519

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W176 W246 5-Pin Yellow Hella 12V A0025428919

Part no. A0025428919

Relay Mercedes W176 W246 5-Pin Yellow Hella 12V A0025428919

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E36 E38 E85 Mini R52 R57 2x Change-Over Contact Relay Violet Set 1388911

Part no. 1388911-1

BMW E36 E38 E85 Mini R52 R57 2x Change-Over Contact Relay Violet Set 1388911

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913

Part no. 9207913-1

BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

Part no. 1393415

BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Audi Seat Skoda Relay Black 5 Pins 12V 50A Set 433 3D0951253A

Part no. 3D0951253A

VW Volkswagen Audi Seat Skoda Relay Black 5 Pins 12V 50A Set 433 3D0951253A

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes ML W163 Relay 4-Pin Grey Tyco Set Kit A0025422619

Part no. A0025422619-2

Mercedes ML W163 Relay 4-Pin Grey Tyco Set Kit A0025422619

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W163 W168 W203 W211 Relay 4-Pin Black Hella A0025421119

Part no. A0025421119

Mercedes W163 W168 W203 W211 Relay 4-Pin Black Hella A0025421119

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey A0009822923

Part no. A0009822923

Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey A0009822923

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819

Part no. A0025428819

Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relay A0009821923 Red

Part no. A0009821923

Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relay A0009821923 Red

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W169 W245 W204 W212 Relay 4-Pin Black Hella A0025427219

Part no. A0025427219

Mercedes W169 W245 W204 W212 Relay 4-Pin Black Hella A0025427219

£13.95

Free delivery: Mar 17

If paid before 14:00

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Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 038907281D

Part no. 038907281D-1

Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 038907281D

£13.95

Free delivery: Mar 17

If paid before 14:00

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Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 646 4H0951253C

Part no. 4H0951253C

Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 646 4H0951253C

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A

Part no. 443937105A

VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A

£13.95

Free delivery: Mar 17

If paid before 14:00

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Seat Skoda Audi VW Polo 6R Multi Use Control Relay 4 Pin 645 4H0951253A SET X3

Part no. 4H0951253A-2

Seat Skoda Audi VW Polo 6R Multi Use Control Relay 4 Pin 645 4H0951253A SET X3

£18.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619

Part no. A0025422619-3

Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W176 W205 W213 W242 W447 W907 Relay 4-Pin Black Tyco Unit A0035420819

Part no. A0035420819

Mercedes W176 W205 W213 W242 W447 W907 Relay 4-Pin Black Tyco Unit A0035420819

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

Part no. 1472984-1

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

£13.95

Free delivery: Mar 17

If paid before 14:00

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Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253

Part no. 4H0951253

Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W176 W246 Relay Battery Decoupling 12V A0035422319

Part no. A0035422319

Mercedes W176 W246 Relay Battery Decoupling 12V A0035422319

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W163 W169 W203 W210 Relay Unit 5-Pin Yellow Tyco A0025421419

Part no. A0025421419-1

Relay Mercedes W163 W169 W203 W210 Relay Unit 5-Pin Yellow Tyco A0025421419

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

Part no. 1472984-2

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816

Part no. 6918816

BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219

Part no. A0025421219-1

Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

Part no. 6836504

BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

£18.95

Free delivery: Mar 17

If paid before 14:00

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Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 645 4H0951253A

Part no. 4H0951253A

Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 645 4H0951253A

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327

Part no. 6915327-1

BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W163 W169 W203 W210 Relay 5-Pin Yellow TYCO A0025421419

Part no. A0025421419

Mercedes W163 W169 W203 W210 Relay 5-Pin Yellow TYCO A0025421419

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Scirocco Mk3 Power Starter Motor Relay 12V 50A Plug 7N0951253

Part no. 7N0951253

VW Volkswagen Scirocco Mk3 Power Starter Motor Relay 12V 50A Plug 7N0951253

£13.95

Free delivery: Mar 17

If paid before 14:00

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Ford Mustang GT Mk6 Main Power Relay 4 Pins 8T2T-14B192-AB

Part no. 8T2T-14B192-AB

Ford Mustang GT Mk6 Main Power Relay 4 Pins 8T2T-14B192-AB

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

Part no. A0035420219

Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes Sprinter W907 4-Pin Relay V23074-H1605-X123 A0019820823

Part no. A0019820823

Mercedes Sprinter W907 4-Pin Relay V23074-H1605-X123 A0019820823

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019

Part no. A0025428019

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW 259 259R 259 R22 Connection Plug Relay Pink Tyco 8366625

Part no. 8366625

BMW 259 259R 259 R22 Connection Plug Relay Pink Tyco 8366625

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911

Part no. 1388911-2

BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E36 E38 E85 Mini R52 R57 5x Change-Over Contact Relay Violet Set 1388911

Part no. 1388911-3

BMW E36 E38 E85 Mini R52 R57 5x Change-Over Contact Relay Violet Set 1388911

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W177 Relay 052 Fuse Box Relay Slot B D E 70A Tyco SET X2 A0035421619

Part no. A0035421619-1

Mercedes W177 Relay 052 Fuse Box Relay Slot B D E 70A Tyco SET X2 A0035421619

£13.95

Free delivery: Mar 17

If paid before 14:00

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 Power Relay Control Mercedes W176 W246 Module 4 Pin 12V 20A A0035423019

Part no. A0035423019

Power Relay Control Mercedes W176 W246 Module 4 Pin 12V 20A A0035423019

£13.95

Free delivery: Mar 17

If paid before 14:00

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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342

Part no. 8200263342

Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Audi Seat Skoda Glow Plug Relay Unit Engine Supply Black 4 Pins 1K0951253A

Part no. 1K0951253A

VW Audi Seat Skoda Glow Plug Relay Unit Engine Supply Black 4 Pins 1K0951253A

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2

Part no. A0035420219-1

Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2

£18.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923

Part no. A0009821923-1

Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923

£23.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W176 W246 Power Relay Control Module 5 Pin 12V A0009828323 Set X2

Part no. A0009828323-1

Mercedes W176 W246 Power Relay Control Module 5 Pin 12V A0009828323 Set X2

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W166 Voltage Dip Protection Start/Stop Relay Module A0009820123

Part no. A0009820123

Relay Mercedes W166 Voltage Dip Protection Start/Stop Relay Module A0009820123

£161.95

Free delivery: Mar 17

If paid before 14:00

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BMW E90 E91 F10 Mini R50 R52 Change Over Contact Relay Grey 5 Pins Set 1393415

Part no. 1393415-2

BMW E90 E91 F10 Mini R50 R52 Change Over Contact Relay Grey 5 Pins Set 1393415

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693

Part no. 9367693

BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693

£18.95

Free delivery: Mar 17

If paid before 14:00

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Relay Glow Littlefuse Mega Fuse 250 Amp 5293147

Part no. 5293147

Relay Glow Littlefuse Mega Fuse 250 Amp 5293147

£18.95

Free delivery: Mar 17

If paid before 14:00

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Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253

Part no. 8K0951253-1

Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253

£18.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 4X Relay Make Contact White Green Set 8373700

Part no. 8373700-2

BMW E60 E63 E87 E90 E91 4X Relay Make Contact White Green Set 8373700

£14.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W168 W203 W211 Relay 6-Pin Black Tyco A0025421219

Part no. A0025421219

Mercedes W168 W203 W211 Relay 6-Pin Black Tyco A0025421219

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B

Part no. 141951253B-2

VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B

£13.95

Free delivery: Mar 17

If paid before 14:00

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Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

Part no. 7M0951253C

Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

£13.95

Free delivery: Mar 17

If paid before 14:00

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Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

Part no. 7M0951253A

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Touareg 7L Audi Q7 4L Relay Black Control Unit 5 Pin 404 12V Set 7M0951253C

Part no. 7M0951253C-2

VW Touareg 7L Audi Q7 4L Relay Black Control Unit 5 Pin 404 12V Set 7M0951253C

£13.95

Free delivery: Mar 17

If paid before 14:00

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Seat Ibiza 6J Relay Black Control Unit 7 Pin 12V 3U0941597A

Part no. 3U0941597A

Seat Ibiza 6J Relay Black Control Unit 7 Pin 12V 3U0941597A

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K

Part no. 1J0919506K

VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Audi Seat Relay 449 12V 30A Unit Module 4 Pins 1K0951253

Part no. 1K0951253-1

VW Volkswagen Audi Seat Relay 449 12V 30A Unit Module 4 Pins 1K0951253

£13.95

Free delivery: Mar 17

If paid before 14:00

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Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO SET 5M5T14B192CA

Part no. 5M5T14B192CA

Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO SET 5M5T14B192CA

£13.95

Free delivery: Mar 17

If paid before 14:00

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Relay Unit Mercedes W163 W168 W203 W211 4-Pin Black Hella A0025421119 Set 2x

Part no. A0025421119-1

Relay Unit Mercedes W163 W168 W203 W211 4-Pin Black Hella A0025421119 Set 2x

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Black A0035420419

Part no. A0035420419

Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Black A0035420419

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B

Part no. 141951253B-1

VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B

£13.95

Free delivery: Mar 17

If paid before 14:00

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Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B

Part no. 443937105B-1

Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B

£18.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238

Part no. 1378238-1

BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238

£13.95

Free delivery: Mar 17

If paid before 14:00

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Ford Focus Mk3 Relay Module 4-Pin Black BU5T-14B192-AA

Part no. BU5T-14B192-AA

Ford Focus Mk3 Relay Module 4-Pin Black BU5T-14B192-AA

£13.95

Free delivery: Mar 17

If paid before 14:00

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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238

Part no. 1378238-3

BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238

£13.95

Free delivery: Mar 17

If paid before 14:00

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Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins 8K0951253

Part no. 8K0951253

Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins 8K0951253

£13.95

Free delivery: Mar 17

If paid before 14:00

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Vauxhall Opel Relay 4-Pin Tyco Unit Yellow 90226846

Part no. 90226846

Vauxhall Opel Relay 4-Pin Tyco Unit Yellow 90226846

£13.95

Free delivery: Mar 17

If paid before 14:00

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Ford Fiesta Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-CA

Part no. 6G9T-14B192-CA

Ford Fiesta Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-CA

£13.95

Free delivery: Mar 17

If paid before 14:00

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Porsche Boxster 986 Rear Spoiler Control Relay 99661510200

Part no. 99661510200

Porsche Boxster 986 Rear Spoiler Control Relay 99661510200

£13.95

Free delivery: Mar 17

If paid before 14:00

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Dashboard Panel Mercedes W176 W246 Switch Dynamic Select Start/Stop A2469057902

Part no. A2469052602

Dashboard Panel Mercedes W176 W246 Switch Dynamic Select Start/Stop A2469057902

£28.95

Free delivery: Mar 17

If paid before 14:00

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Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419

Part no. A0025428419

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419

£13.95

Free delivery: Mar 17

If paid before 14:00

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Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841

Part no. 1J0927841

Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841

£13.95

Free delivery: Mar 17

If paid before 14:00

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VW Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

Part no. 7M0951253C-1

VW Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

£13.95

Free delivery: Mar 17

If paid before 14:00

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Mercedes Vito W447 W213 OM654 Power Distribution Relay Unit Module A0005459812

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Electrical relays for stable vehicle electrical system performance

Electrical relays for stable vehicle electrical system performance

Stable and reliable relays for the car's electrical system

Relays are key components of a vehicle's electrical system, controlling the flow of current to various electrical devices, such as lights, fans, fuel pumps, and air conditioning systems. Relays allow for the control of high electrical loads using low-voltage signals, ensuring the smooth operation of vehicle systems. At Global Parts, you'll find a wide selection of used car parts, including relays, perfectly matched to brands like BMW, Audi , Mercedes, Volkswagen, Mini, and more .

What is an electrical relay and how does it work in practice?

An electrical relay is an electromechanical or solid-state control element that acts as a switch activated by a low-current signal. In the classic 12V automotive design, it consists of an electromagnetic coil, a core, a movable contact (armature), and a set of operating contacts (NO – normally open or NC – normally closed). When a control voltage (usually 12V) is applied, the coil generates a magnetic field that closes or opens the power circuit. In practice, this means the ability to control devices drawing 20A, 30A, or even 70A using a signal with a load of 0.1–0.2A. This represents a significant saving for the control system and components such as switches, comfort modules, and ECUs. In modern vehicles, relays work with BCM modules and CAN systems, ensuring precise adjustment of the operating parameters of the entire system.

What functions do relays perform?

Relays play a key role in many vehicle electrical systems:

  • High Load Switching – Controls high-power electrical devices, minimizing the risk of system overload.
  • Electrical System Protection – Reduces load on control circuits, protecting against surges and overloads.
  • Remote control – Allows devices to be turned on and off using control signals.
  • Optimizing system performance – Relays ensure electrical systems operate efficiently and without disruptions.

Types of relays and their technical parameters

There are several basic types of relays used in automotive installations:

Relay typeCharacteristicTypical parametersApplication
ElectromechanicalClassic design with mechanical contacts and an electromagnetic coil12V / 24V, 20–70AFuel pump, radiator fan, heater
Mini / Micro ISOCompact housing compliant with ISO standards12V, 20–30ALow beam, horn, module control
Time relaySwitching on with time delay (adjustable)12V, adjustable 1–30 sec.Interior lighting, heated windows
Solid State Relay (SSR)No mechanical components, quick switching12V, high switching frequencyElectronic systems, ECU controllers

The most common contact markings are: 30 (power supply), 85 and 86 (coil), 87 (NO contact), 87a (NC contact). Relay matching should take into account voltage compatibility (12V in passenger cars, 24V in trucks), maximum operating current and contact configuration.

Why is it worth taking care of relays ?

A faulty relay can lead to problems with the operation of electrical devices and reduce the reliability of the vehicle's electrical system. Typical symptoms include:

  • Electrical devices not responding – Lights, fans or fuel pumps do not work despite components being functional.
  • Erratic operation – Devices turn on and off randomly.
  • No control signal – A damaged relay does not transmit current to the controlled device.
  • Relay overheating – May indicate overload or internal damage. If you need a replacement, you'll find the right used car parts at Global Parts that will restore full functionality to your electrical system.

Symptoms and relationships with other installation elements

In practice, an electrical relay interacts directly with fuses, control modules, temperature sensors, and the wiring harness. For example, the fuel pump relay in many BMW and Volkswagen models only activates after receiving a signal from the crankshaft position sensor. In the case of the radiator fan, the relay responds to a signal from the coolant temperature sensor (usually at 92–105°C). Correctly matching parameters (e.g., 40A instead of 30A in the fan circuit) ensures stable operation, optimizes current flow, and reduces voltage drops. This is also important when upgrading LED lighting or installing additional accessories, where load compatibility is crucial.

How to choose the right relays ?

When selecting relays, there are several key aspects to consider:

  • Vehicle-specific fit – Every electrical system has its own specific technical requirements. At Global Parts, you'll find relays perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and more .
  • Electrical Parameters – Check operating voltage, maximum current and control circuit specifications.
  • Technical condition – Used relays should be fully functional and free from signs of overheating or mechanical damage.

Step-by-step relay matching procedure

  1. Check the installation voltage (usually 12V).
  2. Verify the maximum current of the device (e.g. radiator fan 25-40A).
  3. Specify the contact configuration (NO/NC).
  4. Adjust the case size (Mini ISO, Micro ISO).
  5. Compare pin designations (30/85/86/87). This approach allows for full compatibility with the electrical system and ensures correct installation without the need to modify the wiring harness.

Why choose used relays ?

Used car parts, such as used relays, are an economical solution that allows you to save money while maintaining high quality. By choosing used electrical components, you benefit from:

  • Lower costs – Used relays are much cheaper than new ones, but offer just as high quality.
  • Ecology – Recycling parts supports environmental protection and reduces waste.
  • A wide range of products – In our store you will find used relays to the most popular car brands.

How to take care of relays ?

To ensure that the relays function reliably for a long time, it is worth following a few rules:

  • Regular inspection – Check the condition of relays during technical inspections.
  • Clean connections – Keep connectors and wires in good condition to avoid interruptions in current flow.
  • Avoid overloads – Use relays with appropriate parameters for the given electrical system.
  • Replace on time – Damaged or worn relays should be replaced to prevent problems with the operation of electrical equipment. If you need a replacement, Global Parts has the right used car parts to ensure the reliability and durability of your electrical system.

FAQ - Frequently asked questions about electrical relays

QuestionAnswer
What is an electrical relay?It is a control element that allows you to turn on high-power devices using a low-voltage signal, usually 12V.
How does a relay work in a car?When voltage is applied to the coil, a magnetic field is created that closes the contacts and allows current to flow to a device, such as a fuel pump.
What are typical relay parameters?Most often 12V and a load capacity of 20A, 30A, 40A or 70A depending on the application.
Does the relay affect the operation of the LED lights?Yes, proper relay matching improves voltage stability and eliminates lighting interference.
How to check relay compatibility?The voltage, operating current and pin configuration must be matched to the specific car model.
Does the relay work with the fuse?Yes, the fuse protects the circuit from overload and the relay controls the current flow.

Summary: Relays at Global Parts Automotive Store

Relays are essential components of the electrical system that control the operation of many devices in your vehicle. By maintaining their technical condition, you can ensure the reliability of your electrical system and the safety of your vehicle. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , and more, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

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