0445116027 — Frequently Asked Questions
Verified answers about the Bosch 0445116027 3.0 CDI/CRD (OM642) V6 Piezo Common Rail Injector (Mercedes/Jeep).
What is Bosch injector 0445116027?
A Bosch piezo common-rail diesel injector for the Mercedes-Benz 3.0 V6 diesel (OM642), also used on the Jeep/Chrysler 3.0 CRD. Bosch exchange 0986435406; Mercedes OE A6420701287.
Which vehicles use 0445116027?
Mercedes Sprinter, Vito/Viano, C/E-Class, ML/GL/R-Class 3.0 CDI and Jeep Grand Cherokee 3.0 CRD (OM642).
Is it solenoid or piezo?
It is a Bosch piezo common-rail injector - do not substitute a solenoid injector.
Does 0445116027 need coding?
Yes - code the injector calibration value to the correct cylinder with Mercedes XENTRY when fitting.
What are the OE part numbers?
Mercedes A6420701287 (and A6420701187) reference Bosch 0445116027; the Bosch exchange number is 0986435406 and 0445116028 is an alternate.
What is 'black death' on the OM642?
It is carbon build-up around a leaking injector bore from combustion blow-by; clean the bore and renew seals when fitting injectors.
What are the symptoms of failure?
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my OM642 3.0 V6 run rough?
A worn or leaking injector unbalances fuelling; read live cylinder-balance data and bench-test the suspect cylinder.
What causes these injectors to fail?
Poor fuel filtration, contamination and back-leakage wear plus piezo-stack ageing - fix the cause first.
Does a remanufactured 0445116027 perform like new?
A properly remanufactured injector is bench-tested and recalibrated on a piezo-capable tester, then coded on fitment.