Cómo comprar el inyector piezoeléctrico Bosch A6540730087 de segunda mano
El inyector piezoeléctrico Bosch A6540730087 es compatible con los motores Mercedes OM654 2.0d de los modelos C-Class, E-Class, GLC y GLE. Esta guía explica cómo identificarlo, cruzar los números de referencia y qué inspeccionar antes de adquirir una unidad de segunda mano.
What Is the A6540730087 and Which Cars Use It?
The Bosch piezo injector A6540730087 (Bosch part 0445118009) is a common-rail, piezoelectric fuel injector designed specifically for the Mercedes-Benz OM654 2.0-litre diesel engine. Bosch's piezo technology allows faster, more precise fuel metering than conventional solenoid injectors, which is why Mercedes adopted it across a wide range of models from 2016 onward.
Confirmed fitment includes:
- Mercedes-Benz C-Class W205 / W206 – 200d, 220d
- Mercedes-Benz E-Class W213 – 200d, 220d
- Mercedes-Benz GLC X253 – 220d
- Mercedes-Benz GLE V167 – 300d
- Mercedes-Benz Sprinter (selected OM654 variants)
Always verify the engine code (OM654) and production year (2016–) against your vehicle identification plate before ordering.
How to Identify It by OEM Number and Label Markings
Every injector carries two key numbers you should check physically:
- Mercedes OEM number – stamped or laser-etched on the body:
A6540730087 - Bosch number – on the Bosch label affixed to the injector housing:
0445118009
You may also see the calibration code (C2I / IMA code) on a small sticker near the connector. This 6- or 10-character code must be programmed into the ECU when the injector is installed; keep it safe and do not remove the sticker.
Cross-Reference Numbers
Manufacturers and aftermarket catalogues list this injector under several part numbers. The following all refer to compatible or equivalent units:
| Source | Number | |---|---| | Mercedes OEM (primary) | A6540730087 | | Mercedes OEM (variant) | A6540700987 | | Mercedes OEM (variant) | A6540700087 | | Bosch (primary) | 0445118009 | | Bosch (cross) | 0445116027 | | Bosch (cross) | 0445116028 | | Bosch calibration ref. | F00VP0B515 |
If you are browsing the fuel system category and see any of these numbers, they reference the same injector family.
What to Check Before Buying a Used Unit
Buying a used piezo injector is a sound way to reduce repair costs, but a few checks are essential:
- Physical condition – Inspect the nozzle tip for erosion, carbon build-up, or damage. Check the electrical connector pins for corrosion or bent contacts.
- IMA/C2I calibration sticker – The sticker must be legible. Without the calibration code, the ECU cannot compensate for injector tolerances, leading to rough running or fault codes.
- Leak-back data – Ideally, ask for flow or leak-back test results. High leak-back indicates worn nozzle seats.
- Return seals and washers – Confirm the copper sealing washer and return-line seals are included or replaceable. These must always be renewed on installation.
- Seller traceability – Buy from a verifiable source that can confirm the vehicle the injector was removed from and its mileage.
You can inspect the available stock and condition details for this Bosch piezo injector A6540730087 / 0445118009 directly on AutoParts EU.
FAQ
Can I swap one injector without replacing all four?
Yes, individual injectors can be replaced, but each one's IMA calibration code must be entered into the ECU via Mercedes XENTRY or compatible diagnostic software. Skipping this step causes rough idle and misfires.
Does a used injector need ultrasonic cleaning before fitting?
It is strongly recommended. Professional ultrasonic cleaning and flow testing restore consistent spray pattern and confirm the injector performs within specification before installation.
Will this injector fit the OM651 engine found in older C-Class models?
No. The A6540730087 is exclusive to the OM654 engine family. The older OM651 uses a different injector type and is not compatible.