2010-2016 Mercedes-Benz Door Wiring Harness Front, Left 2125409910
OEM Part #: 212-540-99-10 (2125409910)
Actual photo
The exact part you’ll receive — not a stock photo.
$47.49
Side: Front, Left
Used
Donor2011 Mercedes-Benz E350 · 3.0L
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Genuine OEM Used
SKU: 691477
Donor Vehicle: 2011 Mercedes-Benz E350 · 3.0L
2 photos
$47.49
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The Mercedes-Benz front left door wiring harness (OEM 2125409910) is a used genuine component from a donor vehicle. This harness connects power windows, door locks, mirrors, and speakers on the driver’s side. A failing harness can cause intermittent or complete failure of these functions. It fits multiple V6 and V8 engines, including 3.5L V6, 4.7L V8, and 5.5L V8 variants like those in the E-Class lineup.
Specifications
| Fits Vehicle Model | E350, E400, E550, E63 AMG, E63 AMG S |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 212-540-99-10 (2125409910) |
| Side | Front, Left |
| Category | Wiring / Harness |
Compatible Vehicles
Fits 41 vehicle configurations across 1 make, 2010-2016.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 41 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2014 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2012 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2012 | Mercedes-Benz | E350 | Sedan | 3.0L V6 Diesel Turbo | |
| 2013 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2013 | Mercedes-Benz | E350 | Sedan | 3.0L V6 Diesel Turbo | |
| 2012 | Mercedes-Benz | E63 AMG | Wagon | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2016 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2016 | Mercedes-Benz | E400 | Sedan | 3.0L V6 Turbo | |
| 2011 | Mercedes-Benz | E350 | Wagon | 3.5L V6 | |
| 2011 | Mercedes-Benz | E63 AMG | Sedan | 6.3L V8 | |
| 2010 | Mercedes-Benz | E63 AMG | Sedan | 6.3L V8 | |
| 2013 | Mercedes-Benz | E400 | Sedan | 3.5L V6 | |
| 2014 | Mercedes-Benz | E400 | Sedan | 3.5L V6 | |
| 2015 | Mercedes-Benz | E400 | Sedan | 3.0L V6 Turbo | |
| 2015 | Mercedes-Benz | E400 | Sedan | 3.5L V6 | |
| 2010 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2011 | Mercedes-Benz | E350 | Sedan | 3.5L V6 | |
| 2011 | Mercedes-Benz | E350 | Sedan | 3.0L V6 Diesel Turbo | |
| 2010 | Mercedes-Benz | E550 | Sedan | 5.5L V8 | |
| 2011 | Mercedes-Benz | E550 | Sedan | 5.5L V8 | |
| 2013 | Mercedes-Benz | E63 AMG | Wagon | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E400 | Coupe | 3.0L V6 Turbo | |
| 2016 | Mercedes-Benz | E350 | Wagon | 3.5L V6 | |
| 2014 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E350 | Wagon | 3.5L V6 | |
| 2016 | Mercedes-Benz | E400 | Coupe | 3.0L V6 Turbo | |
| 2012 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2012 | Mercedes-Benz | E350 | Wagon | 3.5L V6 | |
| 2013 | Mercedes-Benz | E350 | Coupe | 3.5L V6 | |
| 2013 | Mercedes-Benz | E350 | Wagon | 3.5L V6 | |
| 2014 | Mercedes-Benz | E350 | Coupe | 3.5L V6 | |
| 2014 | Mercedes-Benz | E350 | Wagon | 3.5L V6 |