0445110598 — Frequently Asked Questions
Verified answers about the Bosch 0445110598 1.5 d (B37) Common Rail Injector (BMW 1/2 Series, X1 / Mini Cooper D).
What is Bosch injector 0445110598?
A Bosch solenoid common-rail diesel injector for the BMW 1.5 three-cylinder diesel (engine B37). BMW OE 11617520469.
Which vehicles use 0445110598?
BMW 114d/116d (F20/F21), 214d (F45/F46), X1 (F48) and Mini Cooper D, roughly 2014-2022.
Is it solenoid or piezo?
It is a Bosch solenoid common-rail injector.
Does 0445110598 need coding?
Yes - program the IMA/correction code to the correct cylinder with BMW ISTA when fitting.
What is the OE part number?
BMW 11617520469 references Bosch 0445110598.
Does it fit the 2.0d (B47)?
No - the 2.0 four-cylinder B47 uses a different injector. The 1.5 three-cylinder B37 uses 0445110598; 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 B37 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 0445110598 perform like new?
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then IMA-coded on fitment.