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#1
07-21-2006, 10:29 PM
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How to do a tuneup on a W124 + how long would it last?
I want to get my 1991 300d 2.5 a bit smoother at idle, and it's not really even bad as it is. I took it to a mechanic, he said he could adjust some things to make it better. My engine shakes some, and he said the engine shouldn't shake, at all. He said it would cost $300-$400 to adjust things to get it right. Even if I spent the money for a mechanic to do get it smoother, I wonder how long it'd stay that way.
I've been told the valves on mine are hydraulic; they can't be adjusted. I think he was talking about looking at the timing chain, adjusting the injection timing (?), and some other things. Is it possible/feasible for a lightweight DIY'er like me to do it? I did put some injector cleaner that he recommended in the fuel tank, but that is obviously a small step toward a better idle. 1991 300d, 90k 
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#2
07-21-2006, 10:37 PM
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try a diesel purge and change the fuel filters.
__________________
Current: 05 E320 CDI 07 GL320 CDI 08 Sprinter 05 Dodge Cummins 01 Dodge Cummins Previous 2004 E55 AMG 2002 C32 AMG (#2) 1995 E300 1978 300D 1987 300D 2002 C32 AMG(blown motor :[ 1981 300SD 1983 300SD 1987 300SDL 2002 Jetta TDI 1996 S420 1995 S500 1993 190E 2.6 1992 190E 2.3 1985 190E 2.3 5-Speed
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#4
07-22-2006, 10:59 AM
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Quote:
I was going to say the same thing. My E300D had the shakes...did the motor mounts and life is good again.
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#5
07-22-2006, 11:20 AM
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For a good tuneup, don't forget the plugs and wires.
__________________
- Brian 1989 500SEL Euro 1966 250SE Cabriolet 1958 BMW Isetta 600
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