Mercedes K40 relay unit A2105400072 W210 E320 E420 SLK 230 W463 G500 overhauled
€129,00
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Mercedes K40 relay unit A2105400072 W210 E320 E420 SLK 230 W463 G500 overhauled
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€129,00 EUR
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€129,00 EUR
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KFZTeile-Thot – Genuine used part
Mercedes K40 relay unit A2105400072 W210 E320 E420 SLK 230 W463 G500 overhauled
Central relay unit K40 in the front fuse and relay box.
✓
Condition honestly described
Photos show the actual part
✓
Genuine part
not aftermarket
✓
This exact part
no stock photos
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Shipped from Germany
daily shipping on business days
Vehicle system and function
Central relay unit K40 in the front fuse and relay box. It bundles several relay functions of the vehicle electrical system in one plug-in unit and switches, among other things, the fuel pump via an integrated 15 A fuse as well as further engine and electrical system loads that do not run directly through the fuse strip. Depending on the model, it contains relays for the fuel pump, electronic throttle (E-Gas), fanfare horn, ETS/ASR, secondary air pump and engine terminal 87, each with its own fuses. Typical failure symptoms are starting problems, fuel pump dropouts and rough engine running due to cold solder joints on the circuit board.
Installation location: Front fuse and relay box in the engine bay, behind the cover on the bulkhead. Plug-in, replaceable without tools.
Condition: Used and technically refurbished: cold or poor solder joints on the circuit board were re-soldered, defective resistors replaced, and the module then fully function-tested. Housing with age-appropriate signs of use. Price is per piece. The photos show a representative example.
How to recognize a defective part
- ● Engine does not start when warm, stutters and stalls
- ● Fuel pump not working
- ● Starter motor does not turn
- ● Cause usually cold solder joints on the circuit board
Part numbers
| Mercedes-Benz | A 210 540 00 72 / A2105400072 |
| Stribel | 89 8760 000 / 898760000 |
| MEYLE comparison | 014 830 0010 / 0148300010 |
Fits the following Mercedes models
For SLK 200 (170.435) and E 320 (210.055), several K40 versions were installed according to the catalog (00 72, 02 72, 04 72). Please compare the number on the old part.
| Model series | Models |
| SLK R170 before the facelift | SLK 200 (170.435), SLK 200 Kompressor (170.445), SLK 230 Kompressor (170.447) |
| E-Class W210 sedan | E 320 with inline six-cylinder engine M104 (210.055), E 420 and E 50 AMG (210.072) |
| E-Class S210 T-Model wagon | E 420 T (210.272) |
| G-Class W463 from ident 106740 | G 320 with V6 M112 (463.232/233, convertible 463.209), G 500 with V8 M113 (463.241, convertible 463.206) |
Important distinction – please check before buying
⚠ The ending of the number is decisive
A 210 540 04 72 and 02 72 look identical but have a different connector pin assignment. Please compare the number on the removed part 1:1 with the number in the product images.
⚠ Not SLK after the 2000 facelift / SLK 320
Its own K40 A 170 545 xx 05.
⚠ Not CLK W208
K40 A 000 540 00 72.
⚠ Not W210 diesel
K40 A 000 540 03 72.
⚠ Not E 200 / E 230 / E 200 T / E 230 T
A 210 540 04 72 is installed there.
⚠ Does not fit:
- W210 diesel
- E 280 and E 320 with V6 M112
- E 430 and E 55 AMG
- CLK W208
- SLK from 2000
- W202 and W211
Not sure which version your vehicle has? Just send us your VIN before buying and we will check it for you free of charge.
FAQ
Does this part fit my car?
Please compare the number on your own part, or send us your VIN (chassis number) via eBay.
Scope of delivery
Scope of delivery: see product photos.
Any questions?
If you have any questions or need additional information, we are always happy to help by message or phone. If you are dissatisfied with the item described, send us a message. If you are ever not satisfied with the item you bought, please contact us before leaving a neutral or negative review. We will surely find a solution together.Does this part fit your car? Send us your VIN and model year – we will check it free of charge: contact form or thot.kfzteile@gmail.com.
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