CLK 430 Engine oil leak
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Joined: Aug 2014
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CLK430
CLK 430 Engine oil leak
Hi All,
I have developed an oil leak on the front of my 430 engine.
It is coming from the oil filter, power steering side of the engine.
The rocker covers are dry.
The belts are wet.
The underside of the power steering unit is wet but the inside of the pulley is dry.
The underside of the oil cooler next to the filter is wet but there are no signs of oil leaks.
There are no signs of leaks from any of the hoses.
There is oil behind the power steering pump below the oil filler point.
The power steering oil level is low.
The engine oil level has dropped slightly.
Are there any common oil leak problems with this engine?
Is there anything I should look out for while removing bits?
Thank you in advance
I have developed an oil leak on the front of my 430 engine.
It is coming from the oil filter, power steering side of the engine.
The rocker covers are dry.
The belts are wet.
The underside of the power steering unit is wet but the inside of the pulley is dry.
The underside of the oil cooler next to the filter is wet but there are no signs of oil leaks.
There are no signs of leaks from any of the hoses.
There is oil behind the power steering pump below the oil filler point.
The power steering oil level is low.
The engine oil level has dropped slightly.
Are there any common oil leak problems with this engine?
Is there anything I should look out for while removing bits?
Thank you in advance
MBWorld Fanatic!
Joined: Apr 2005
Posts: 3,784
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From: SCV SoCal
2002 CLK430
The oil cooler o-rings are normal wear parts and they will leak as you have described. Other than the C43, US spec 430s didn't have an oil cooler. However, I have seen photos of ROW CLK430s with factory oil coolers, so anything is possible.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,258
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From: Boston North Shore
2001 CLK320 Cabrio
By chance, was the oil and filter recently changed?
If the large O ring on the filter was improperly installed (e.g. up against the cap's lip), the filter will leak.
The large O ring should be fitted in a grove, that is slightly below the lip.
If the large O ring on the filter was improperly installed (e.g. up against the cap's lip), the filter will leak.
The large O ring should be fitted in a grove, that is slightly below the lip.
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From: North of Boston
Thread Starter
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Joined: Aug 2014
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CLK430
Hi All,
Thank you for your advise on those items to look at.
The oil filter was changed in the last 6 months so could have a slow leak.
The oil cooler while wet underneath does not look to have fresh oil but more secondary oil spray.
I will check the oil filter first then the cooler and let you know the results
Thank you
Thank you for your advise on those items to look at.
The oil filter was changed in the last 6 months so could have a slow leak.
The oil cooler while wet underneath does not look to have fresh oil but more secondary oil spray.
I will check the oil filter first then the cooler and let you know the results
Thank you
Member
Joined: Dec 2011
Posts: 174
Likes: 1
From: LONDON, UK
mercedes CLK55 AMG
also i would advise you to check the seal under oil filter housing
i had the same problem with oil from the front of the engine on my w208 55amg
replaced all seals and o rings only the oil filter housing seal sorted out the problem
i had the same problem with oil from the front of the engine on my w208 55amg
replaced all seals and o rings only the oil filter housing seal sorted out the problem
