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+--- Thread: om648.962 injector issues (/showthread.php?tid=7989)
om648.962 injector issues - 50harleyrider - 03-02-2018
I have a chance to get an 2006 w211 at a good price but has some issues-namely injector(s). The engine has 226,000 miles on it. The owner says that he has replaced 2 injectors already at a price of $1200 each time. Sounds a bit pricey to me. He said when it happened each time he smelled raw diesel in the cab followed by smoking in the engine bay. Is this believable and is there anything else I should look for about the engine with that many miles? Maybe consider a junk yard lower mile engine? Or plan on having all the injectors rebuilt by a respectable Bosch rebuilder?
RE: om648.962 injector issues - Petar - 03-02-2018
Hmmm that sounds like CDI black death. Copper heat shields under the injectors start leaking and if not caught in time cement the injectors in black goo. The injectors can be damaged in the removal process. Pay attention to if there is a chuffing noise replace heat shields and clamping bolts before more damage is done. It's a common problem but inexpensive and easy to fix if caught in time. 1200$ seems a bit steep to me but I'm not in the USA. Here a used injector is about 100eur and a full rebuild shouldn't exceed 200eur per injector.
RE: om648.962 injector issues - Austincarnut - 03-02-2018
(03-02-2018, 04:30 PM)Petar Hmmm that sounds like CDI black death. Copper heat shields under the injectors start leaking and if not caught in time cement the injectors in black goo. The injectors can be damaged in the removal process. Pay attention to if there is a chuffing noise replace heat shields and clamping bolts before more damage is done. It's a common problem but inexpensive and easy to fix if caught in time. 1200$ seems a bit steep to me but I'm not in the USA. Here a used injector is about 100eur and a full rebuild shouldn't exceed 200eur per injector.
Take your time and soak the injectors with a solvent. They can be had for much less $ from a Bosch rebuilder...
RE: om648.962 injector issues - starynovy - 03-04-2018
You can soak all you want.. that black shit is resistent. You have to heat engine to 100-110°C.. yeah that much, stop cooling fan, block cooler hose. Then black shit softens and you can take out injectors. But cleaning injector seats without special equip. is difficult to say at least.