Mercedes 420 sec cutting out after a few seconds - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 11-02-2011, 04:52 AM Thread Starter
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Date registered: Nov 2011
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Mercedes 420 sec cutting out after a few seconds

Hi, just new to this forum,
I have recently been given a mercedes sec 420 from my mate for free as he was just going to scrap it and I said I would have a bash at getting it running again and try to get it looking abit nicer. The story goes it was lying on his farm for 5 years and he never hardly touched it as he had far too many projects on the go at once, so I came along, spotted it and seen the potential, however trying to get it going has got me pretty stumped at the moment. So far I have cleaned out the bores with penetrating fluid, turned it over by hand and got it going freely. I then replaced the spark plugs and gave it an oil change, because I was told a while back the guy had been pouring petrol and all sorts of fluids into it to get it started. It also has a new oil filter and starter motor. I can now start it and it runs fine for about 5-10 seconds, but then it cuts out immediately and sometimes stutters and coughs for a couple of seconds then cuts out. Any ideas as to why it might not be running?
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post #2 of 2 (permalink) Old 11-02-2011, 05:06 AM
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