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  1. W202 C-Class
    Hello i have a mercedes benz c200 from 1994 that have a problem, i guess its geting to much fuel or to less fuel, MAF? . its idel but very very bad, when you drive it and you stop the car its shuting off the engien. I dont know what the problem can be if its not the MAF that is the problem or...
  2. R/C107 SL/SLC Class
    Help,I need somebody's help,I bought, 1983 380SL owner thought it needs a fuel filter(understatement for sure),keep in mind I started the car with starting fluid and can keep it running by spraying a little spray in the air air intake horn. The first thing I checked was to make sure fuel pump...
  3. W123 E,CE,D,CD,TD,TE Class
    My w123 won't start, I was told when I bought it that they flushed/cleaned the lines on it because they accidentally put gasoline in it. Was wondering if I should take whatever gas/diesel or clean stuff in it. And what I can do to fix the problem.
  4. W126 S,SE,SEC,SEL,SD,SDL Class
    I have access to unlimited free gas through my work, but it is 89. Is this ok to run, perhaps with a LucasOil octane booster? Said to raise the octane rating by 30 pts, theoretically raising the rating of my tank to 92. So far I have not noticed any issues with a few tanks, maybe running...
  5. W126 S,SE,SEC,SEL,SD,SDL Class
    Hello, My 420SEL once in a while starts instantly from a cold start then dies immediately. After I turn it on again, no issues. Very strange issue because earlier in the year when I drove the car daily I used lots of fuel additives and the issue went away as well as another problem I had which...
  6. W245 B-Class
    Hi guys, I have a w245 '09 B170NGT which starts, runs and shuts off without any problems over summer, but in cold morning starts, the engine cranks for about 5 seconds, starts, shuts off after a couple of seconds, and after another try or two, engine starts like nothing happened. I think that...
  7. For Sale/Wanted/Trade/Giveaway
    This is an all-mechanical fuel injection pump which belonged to my 1987 W124 250D (European model) with the OM602 5-cylinder, non-turbo diesel engine. This pump might work on the North American W124 300D 2.5 and W201 190D 2.5, both non-turbo as well, but I am not sure. Identification numbers...
  8. W124 E,CE,D,TD Class
    Hi everyone, With the motivation and push from a few members (specifically H.D. ;)), I have decided to create a new thread to consolidate all testing procedures surrounding the M103 engine. Please understand that there may be minor variations between the engines (2 pin vs 4 pin/EGR/Non-EGR)...
  9. W126 S,SE,SEC,SEL,SD,SDL Class
    Hello, I was curious what some of you experienced Mercedes’ W126 owners think if I only drive my 420SEL once a month though it’s all highway the few days I use it each month. Did put fuel stabilizer that says it can go 2 years. I actually had to leave it sitting from June to September because...
  10. W124 E,CE,D,TD Class
    Hi all. This has been an issue I have been chasing for the better part of a year now and its really been a bummer.. Just a warning, this will be a very long post, so grab a beverage and enjoy. Background: The car in question is my 1986 W124 300TE Euro spec M103. This car was imported over from...
  11. R/C107 SL/SLC Class
    I finally got the car running after it sat for 26 years! Unfortunately, now the fuel return line leaks. Replaced the hard line to tank rubber hose and hose clamps (they initially leaked), so can confirm its not just running down from there. I am having a leak where the hard line sits in the...
  12. W163 M-Class
    Hello all. I have a 1999 ML320, and while the engine is running, there is a slight fuel leak coming from a couple spots in the car, one behind and one in front of the rear axle- at least that's where I notice the actual drips coming down (sorry I can't be much more specific, don't know a damn...
  13. W201 190-Class
    I have recently purchased a 1985 190E that I was told has not run in 10 year. I completely emptied the tank, replaced the intank screen, replaced fuel pump and fuel filter, and flushed the feed line. I am now getting fuel through the distributor and return line, but no fuel will go through any...
  14. W202 C-Class
    Backstory, previous issues: I just bought a 1998 Mercedes c230 and I had a throttle issue at first. Whenever I would try to accelerate fast or push the gas pedal past a certain point, the car wouldn’t accelerate. My check engine light came on soon after (figured the dealership cleared the...
  15. R/C107 SL/SLC Class
    Hi all, Got an ongoing issue with my 380SLC which continues to give me trouble on warm/hot days in Australia (i.e. 25+ degrees celsius) The car starts and runs fine when cold on the first drive of the day. Then as I drive (perhaps like 10kms distance in low-moderate traffic), the pressure...
  16. W124 E,CE,D,TD Class
    Hey all, Down here in Texas trying to fix the car I'm buying from family. It has a new harness, cap, rotor and spark plugs... So we know it has spark. We are suffering from a fuel delivery issue. The car has had 2 new fuel filters within the last month after having sat for a few years. Both...
  17. R129 SL-Class
    I'm getting system pressure readings of 6.5 bar on my M104.981. Now I know this is out of spec by 0.1 bar but is that difference really enough to be causing all the problems I've got? (btw, the lower chamber pressure is 0.4 bar less - right on the spec) The motor sometimes has starting and...
  18. R/C107 SL/SLC Class
    I just cleaned and rebuilt my fuel distributor on my 78 450sl and all of my fuel delivery issues have been fixed, but I just checked the distributor again and noticed that there is a small hole on the top between two of the injection lines with a steady flow of gasoline coming out of it and all...
  19. W221 S-Class
    Hello All, My first time here. I have a 07 s550 4 matic. I was driving about three weeks ago and the car just cuts off. All dashboard lights coming on, radio/ cd everything works fine but no crank and no start. Towed to the mechanic and noticed the fuel pump fuse (30a) in the rear was blown and...
  20. W210 E-Class
    doesnt matter if its off or on. Woke up to find it like this, when i turn it on or off it just shakes and moves 1mm
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