BenzWorld Junior Member
Date registered: Aug 2014
Vehicle: 1991 500SL
Location: PA (USA)
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500SL 5.0L Alum Block Defect...Questions??
We have a 3,300 mile 500SL (Red/Tan) in outstanding condition (with soft & hard tops) that has been pampered for 23 years...since buying new, and discovered recently that the block deck apparently came with a defect in the casting, that eventually (after a whopping 3,300 miles) started to leak through the head gasket and give signs of a blown head gasket. None of the mechanics that have seen the car (including the MB Dealer) have "ever" seen anything like this before. It was NOT due to misuse or poor maintenance!
So, being that MB will not warranty it (they offered 10% off on the work or a new car), we are stuck. Not sure to fix or sell the car as-is, so that some enthusiast can deal with the engine issue and have a basically new (3,300 mile500SL)! Car has always been in a climate controlled garage also.
Two questions then:
1. Has anyone ever seen this sort of thing? I can try to post up a pic of the bad spot on the block.
2. What would you do if it were your car?
I appreciate any advice,
John (in PA)