om642

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    OM642 long cranking after night and weird sound

    Hi, for the past three to four months I’ve had difficulty with hard cold starts on my 2007 W211 320 CDI. It only happens after the car has been parked overnight in the garage. On the first attempt, the engine cranks but doesn’t fire—it sounds just like when you install a new fuel filter. For...
  2. D

    Good evening all. I need need help and advice asap on DEAD W211 OM642

    Hell again, this afternoon my wife called me a few mins away from home she said she smelt some smoke from our car she thought it may be an oily smell but wasnt sure. (We had the dreaded oil cooler job done last year and oil was on everything thats all we ever smelt until I could get ot fixed so...
  3. E

    Oil leak

    Just noticed some small oil spot in my garage, is an ml350 Bluetec 2013, there’s a black spot on the skid plate( front left, just in front of the front left tyre ) I suspect is oil filter housing gasket leak, the oil leak is minimal, oil cooler was replaced when my car was 70,000 miles (now is...
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    Starting issues when cold om642

    Hi all, Got a s212 e350 facelift 120,000 miles. Sometimes the car takes an unusually high amount of cranks to start when cold. The battery was replaced earlier this year. The fuel filter was replaced with OEM 12,000 miles ago ( less than 2 years ). As far as I know, the glow plugs have never...
  5. J

    GL 320CDI OM642 Weird Ticking Sound

    Hiya everyone! Love the forum here. Recently I got myself a GL320 CDI from 2008 with 235.000KMs on the clock. Runs great, lots of power, no strange issues. There is however a strange ticking sound coming from somewhere which makes me ick and I lose my sleep over it. Here is the video. You can...
  6. E

    E350 Bluetec - Whining/Air leak sound upon hard acceleration.

    Hi, My car has suddenly started to make this very strange, and quite loud whining/air leak sound when accelerating hard. Does anyone have any idea what it could be? My mechanic test drove it for just 1 minute and said my turbo is beginning to fail even though earlier, he said it was just a...
  7. A

    W211 E320 Which one to buy?

    Hello! I'm interested in buying W211 with atleast 3.0 diesel engine. I want something powerful, but at the same time reliable. What are the common problems to check out when buying used merc? I've found one that I like but it got 400k km on it (248,5k miles). It's om648 150kw I6 diesel. Is that...
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    2007 w211 om642 Coolant leak from back of engine but can’t find source

    hey everyone I recently noticed a puddle of coolant under the car. I lifted the car up to see where the leak was coming from but I am having trouble finding it. The only sign I can see is that it’s dripping down from the back of the engine from the firewall above the oil pan. Car doesn’t...
  9. A

    ML320 W164 320CDI engine troubles - opinions wanted!

    Firstly, please excuse the long post, I have been having some engine troubles recently and I am hoping that the community can help me get to the bottom of it. The car is a W164 ML320 CDI with the OM642 engine and about 133000 miles on the clock. The problems first started about a week ago on...
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    Mercedes E350 w212 Upgrade to 350HP?

    Hi, I’m new in forum and I’m from Germany. My car is W212 Mercedes E350d 4matic 2015 (OM642) with remap and dpf off 285hp. I want to make my car 330-350hp. I will make my turbo hybrid. I need to upgrade my intercooler and i search downpipe but i don’t have idea someone can help me?
  11. D

    W204 C350cdi radiator fan issue

    Hi, new to the forum so apologies if this isn’t the correct area for my question/issue. So I’ve got this problem where the radiator fan will just come on intermittently when the car is locked, I could wake in the morning to it turning on and off, I’ve had it in with an indi specialist but not...
  12. S

    W211 OM642 Smoking and losing oil

    Hey. I got a W211 OM642 engine. I changed turbo once because it was dragging oil into exhaust, brand new turbo. After change i have to fill oil every 5-6 days. I have changed the crank ventilation, and this cover behind, and still no changes. It Smokes much. Looks like i create a fog behind me...
  13. N

    Mercedes E350 CDI 2010 Starting, Temperature issues.

    Hi All, I've been having a few issues with my recently purchased 2010 e350 coupe OM642.83 (93k miles). No codes showing. 1) The car struggles to start on first cold start but then remains fine for the rest of the day. Glow plug lights go off straight away as they should, and both plugs and...
  14. C

    Leak oil line/fuel return line placement OM642

    So I foolishly snapped the plastic connector while swapping thermostat and had to get a new one of these (£90!), the old one is sandwiched on the right side underneath some injector lines and the rail. Seems like a lot of work to take all these off, any problem with running the new line over the...
  15. R

    E350 engine change

    Hi I’ve changed the engine on my friends e350. om642 ive got a fault coming up with cam sensor hall b6/1 I’ve check the wires and scoped the sensor and all is looking ok. But the car struggles to start and goes into limp mode. I’m wounded does anyone know if I would need the ecu of the...
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    C320 cdi OM642 sometimes loses boost

    Hi guys, new here and these forums have proved helpful for various jobs but I’m struggling to find the info I need. The issue is that I occasionally lose boost, sometimes cruising on cruise control, other times when accelerating hard to overtake and then the boost goes and I’m dead in the water...
  17. allybassman

    722.9 Auto Gearbox issue *Juddering*

    Hi All, Strange issue that my 2012 C Class (58k miles) has developed - Upon light load on the engine (keeping pace with traffic between 30-50 MPH I have started to feel the car judder. Accelarating is fine, the gearbox changes smoothly, doesn't hold onto gears too long and behaves normally...
  18. B

    Turbo pedestal part # 6420961745

    hello all, I have gone through the pains of replacing the oil cooler seals... however when I got to the valley the oil cooler and the block is squeaky clean. Not only that but the existing seals are the updated purple ones. Oil and gunk stains are on the transmission but nothing on the engine...
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    Ultimate OM642 build (2009 R320L CDI, 7G-Tronic)

    Right, to recoup the story, here is the copy of my introduction post.. Hello everyone, I'm new to this forum but not new to MB in general...Born and raised in the family of Mercedes lovers that started in the early 90s with W123 and continued through out the years, I am currently the proud...
  20. G

    Hello everyone...2009 R320L CDI..help and advise greatly appreciated..

    Hello everyone, I'm new to this forum but not new to MB in general...Born and raised in the family of Mercedes lovers that started in the early 90s with W123 and continued through out the years, I am currently the proud owner of 2009 R320L CDI bought in mid September 2017 with obviously OM642...

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