0445117047 — Frequently Asked Questions
Verified answers about the Bosch 0445117047 2.0 d (OM654) Piezo Common Rail Injector (Mercedes C/E/A-Class, GLC, Vito 220d).
What is Bosch injector 0445117047?
A Bosch piezo common-rail diesel injector (CRI3-20) for the Mercedes 2.0 diesel (OM654). Mercedes OE A6540700187.
Which vehicles use 0445117047?
Mercedes C/E/A/B-Class, GLA/GLC and Vito 220d with the 2.0 OM654 engine, from 2016 onward.
Is it solenoid or piezo?
It is a Bosch piezo common-rail injector (CRI3-20).
Does 0445117047 need coding?
Yes - program the IMA/correction code to the correct cylinder with Mercedes XENTRY when fitting.
What is the OE part number?
Mercedes A6540700187 references Bosch 0445117047.
Does it fit the older OM651 2.1?
No - the OM651 uses a different (solenoid) injector. The OM654 2.0 uses the piezo 0445117047; confirm the OE number stamped on your injector.
What are the symptoms of failure?
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my OM654 run rough?
A worn or leaking injector unbalances fuelling; read live back-leakage data and bench-test the weak cylinder.
What causes these injectors to fail?
Poor fuel filtration, contamination and back-leakage wear - fix the cause first.
Does a remanufactured 0445117047 perform like new?
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then IMA-coded on fitment.