The m103 will leak from the upper timing chain cover and from the rear of the head. The good thing about the HG leaks on the m103 is that the oil will get mixed in the coolant but the coolant will almost never get mixed with the oil. This has been the case of about 4 m103 equipped cars i have personally seen with HG leaks ( including my 2.6 190E). Some people drive with HG leaks for years and just keep changing the coolant every 6 months till they can afford a HG replacement.
Also HG replacement on the m103 is relatively easy.
Also if you want help with the m103 and the CIS system you should post in the W124 forum. There is a lot of info there because most of the 300e's came with the same m103.
And if you want a fuel efficient classic car you can drive everyday, why not a w124? I always thought the m103 is a little bit underpowered for the w126.
lots of m103 info here
- Articles
Good luck!
Also HG replacement on the m103 is relatively easy.
Also if you want help with the m103 and the CIS system you should post in the W124 forum. There is a lot of info there because most of the 300e's came with the same m103.
And if you want a fuel efficient classic car you can drive everyday, why not a w124? I always thought the m103 is a little bit underpowered for the w126.
lots of m103 info here
- Articles
Good luck!