Will Barber
Senior Member
- Joined
- Jan 25, 2010
- Messages
- 234
- Reaction score
- 62
- Location
- Cheshire
- Your Mercedes
- 2012 CL500 (4.7L M278)
I hope this post helps other owners out there of cheap imitation copies of Bosch oil filters (and maybe others too).
Literally on the day I carried out a service on my 2102 W216 CL500, a rather worringly rattle appeared on start-up. After 3 or 4 seconds the rattle disappered. This went on continuously on every start-up afterwards.
At the time of carrying out the full service, I fitted a "genuine" Bosch F026407199 oil filter and 9 litres of Mobil 1 0W/40 I thought well it can't be the filter can it, so I plugged in my code reader and there was the fault code for the inlet cam phaser on cylinder bank one. Damn!!!
Cam phasers are over £1k a pop and together with a new cam chain tensioner (well you'd replace everything in there with the front cover off wouldn't you) the cost would be around £2½k just in parts alone!
I thought about this oil pressure loss and for some reason my thoughts turned to the oil filter element. This time I ordered a Mahle OX814D and a Blue Print ADU172103.
I removed the Bosch oil filter element presently fitted and compared it to the Mahle and Blue Print elements and noticed a subtle but crucial difference!
The Mahle and Blue Print elements have a raised top face, whereas the Bosch element I removed was as flat as a pancake. All this type of oil filter MUST have a raised top face as per the attached picture. I fitted the Blue Print oil filter element and surprise surprise no more rattle, and after removing the fault code it's now perfect!
Now this is alarming and damn right annoying alright.... I don't know everything, but being a Bentley engineer all my life I've always serviced and looked after my own cars. However there are a lot of owners out there (and dealers) that don't have the same thought process and this can easily lead to monstrous engine rebuild costs and unnecessary repairs.
Please pass on this information to where you see fit, and remember to inspect the new replacement parts with those that have been removed.
I for one have learned a lesson and only buy parts from a BIG motor factors or main dealer.
Regards, Will.
Literally on the day I carried out a service on my 2102 W216 CL500, a rather worringly rattle appeared on start-up. After 3 or 4 seconds the rattle disappered. This went on continuously on every start-up afterwards.
At the time of carrying out the full service, I fitted a "genuine" Bosch F026407199 oil filter and 9 litres of Mobil 1 0W/40 I thought well it can't be the filter can it, so I plugged in my code reader and there was the fault code for the inlet cam phaser on cylinder bank one. Damn!!!
Cam phasers are over £1k a pop and together with a new cam chain tensioner (well you'd replace everything in there with the front cover off wouldn't you) the cost would be around £2½k just in parts alone!
I thought about this oil pressure loss and for some reason my thoughts turned to the oil filter element. This time I ordered a Mahle OX814D and a Blue Print ADU172103.
I removed the Bosch oil filter element presently fitted and compared it to the Mahle and Blue Print elements and noticed a subtle but crucial difference!
The Mahle and Blue Print elements have a raised top face, whereas the Bosch element I removed was as flat as a pancake. All this type of oil filter MUST have a raised top face as per the attached picture. I fitted the Blue Print oil filter element and surprise surprise no more rattle, and after removing the fault code it's now perfect!
Now this is alarming and damn right annoying alright.... I don't know everything, but being a Bentley engineer all my life I've always serviced and looked after my own cars. However there are a lot of owners out there (and dealers) that don't have the same thought process and this can easily lead to monstrous engine rebuild costs and unnecessary repairs.
Please pass on this information to where you see fit, and remember to inspect the new replacement parts with those that have been removed.
I for one have learned a lesson and only buy parts from a BIG motor factors or main dealer.
Regards, Will.