Sprinter 906 OM651.955 non gen oil filter found 3 old filter parts and various shit in filter customer just purchased had service done at a Branded Service Center in Newcastle suburbs
. Same model Sprinter 906 316cdi went to old mates with a oil leak, yes we fixed it... 3 months later still leaking, told them to go back and get old mate to fix it. Still leaking 9+ months later.
Customer has shits with old mate, no one is perfect but they wipe hands of it, with the old 3 month I.D.G.A.F warranty rule, it was a while ago, what did I do, have you an invoice are you sure I did this work.
Customer has issues with Alternator giving out erratic fault codes low voltages etc. Fed up with new guy (again) who is cheaper on paper they call us again, so we supply and fit a OEM Alternator but notice a water pump leak and huge oil leak.(not always leaking though)
We pull a bit of shit off, looks like a oil sensor leak, but after replacing still leaking, Never had a oil leak like this before. It would leak at start up but once turned off and restarted it would stop leaking for a period, sit for a day and run out like a tap.
Unfortunately for my customer I had to put them off the road as serious damage was likely if it kept losing this amount oil. Ended up letting it sit a whole day and stripped the engine bay clear of all a/c power steering pumps and other accessories so to give a clearer picture of where this leak was. run it for 2 minutes or so with no belts etc, found the area involved and started stripping back to the block.
Looks like old mate decided that he could squeeze a tube of sillastic in the oil galleries and miracles will occur , they skipped O-ring Training day, that flapping sillastic shown in picture was the tap turning on and off it would sometimes seal and other times be the path of least resistance.
Not sure if they put new o-rings in or just did the sillasitc trick. Probably would last 3 months.
Unlike some situations where a dob of FIPG formed in place gasket material is clamped between 2 solid surfaces and held in place by bolts or nuts, this situation has a o-ring located in a groove on a plastic tube coming from the oil filter housing that inserts into the hollow section of the alloy cooler and steel section of engine block, thus 3 different material needs a flexible seal.
This job was done at least 2 times but who really knows, old mates invoices were vague poor job descriptions lacking any real evidence of the work carried out.
All up this poor customer was out of pocket close to $2500 but unknown to me they were using liters of oil a month.
We repaired the leak using genuine Mercedes-Benz parts, replaced the oil filter housing/oil cooler assembly as a precaution $500 odd bucks as it was pulled apart and they are known to leak internally.
This customer is a caring group of people with a small fleet of buses with no real idea of mechanical knowledge and old mate has used and abused there naivety and trust,
Old mate should of fixed the issue at first instance re-investigated why, out sourced the job to a better/more knowledgeable mechanic and stop passing the buck. and kicked the arse of the tech doing the job. (thats what they call the new bread)