I need Advice on a 420 SEL - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 09-07-2010, 08:06 AM Thread Starter
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Date registered: Jan 2007
Vehicle: 1975 450 SLC
Location: Whitehorse, Yukon
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I need Advice on a 420 SEL

I am looking at buying with appears to be a 90-91 420 SEL with 123,000 miles. The person tells me that the only problem is that it "stumbles" on starting. Some times it has to be started twice. Aside from that, runs good. I also am looking at a 90 560 SEL, 150,000 kilometers--I guess that translates to about 110,000 miles. What should I be looking for in each. Living in the North, I will not be driving once Winter hits. Thanks
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post #2 of 2 (permalink) Old 09-07-2010, 06:52 PM
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Date registered: Dec 2004
Vehicle: 1972 280CE
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Hi, there is a dedicated w126 forum on this site that you may wish to post. With the 560SEL, my experience is that you need to make sure that the timing chain has been replace along with the rails. This needs to be done at around 100,000 miles. If it fails, then it will be very expensive to correct.

The 560SEL's have rear (or maybe full) hydraulic systems. The spheres need replacing every few years, if they are not, the ride will be rock hard.

Watch out for rust. I'm sure that others on the W126 forum will be able to give more advice.

With best regards


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