Comments and help given

Below you will find a chronological listing of collected comments and responses from the complete Mercedes Gen-In site, these detail many elements of help and support that has been offered to readers. Comments and replies are listed from the most recently published.

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  • From Eugene Blesing on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    May be a bit late to the party but here’s my £.02…. 2006, 165000 miles. Losing turbo intermitently. Pulled every sensor connection, cleaned and applied dielectric grease. Found the ground to boost sensor had been compromised as well as on the sensor on coolant reservoir (which shares the same loom). They both had a spot where the insulation was missing. I simply covered them each with electrical tape and gave it a good days test drive. No more drops in boost. In fact, it seems to have more power. I do show signs of oil at many joints. I’m going to clean everything well and keep a weather eye. Thanks for the great write up!

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  • From Harry Thorn on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    Is there a way to tweak the cruise control? When I am travelling on an interstate here in SC and GA at 70 MPH and hit a fairly steep hill while on cruise it will drop a few miles per hour before I hit the top. but if I override the cruise and push the pedal down it will hold 70.

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  • From Max on Mercedes CDI Injector leak - Honda washer/seal alternative

    Hi Steve, I appreciate you’re a busy man but would value your advice before fitting a new set of injectors to my 2007 311 CDI, they’re the Bosch Piezo type.

    Is the Honda Accord seal swap still applicable to the newer 646.985 engines? (torque to 7Nm + 180 deg?)

    Injector coding – is this MB main agent only or do I need to find a local mechanic with a specific electronic device/software? Do i just record the number etched on the top plastic collar from each injector and tell the coder which cylinder they went in? Will it run without coding? MB are 40 miles away from me.

    Thanks again for your much valued help


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  • From Harry Thorn on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    Steve Ball;
    The problem with my 2007 Sprinter going into limp mode turned out to be a crack in the inter cooler hose.
    Harry Thorn

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  • From Roy Vickers on Mercedes CDI Injector leak - Honda washer/seal alternative

    Hi Steve I have a Vito CDI 115 2004 panel van. It started chuffing and resulted in black death.
    My number one injector started leaking. I took the vehicle to a recognised MB repair shop.
    They failed miserably.The repair lasted just three months. Scouring through Google for DIY answers to black death, I came across Mercedes Gen-in and Mr Steve Ball.
    The replacement of the shrink bolt and cleaning out the bolt threads and debris blown out of the threaded bolt holes to make sure the bolt bottomed out when torqued down. The lapping in of the injector seat face The suggested replacement of the copper washer with the Honda 2.2 Accord.
    I phoned the garage that carried out the repair and was told bring it back your repair has a 1 year guarantee. I quizzed the forman regarding replacement of the shrink bolt. No we pull the injector out slip a new washer in and and that’s it, repair complete.
    I decided that it was pointless going back and carried out the repair myself.I bought the bolt the OEM copper washers and the Honda washers. lapped in the seat face and put it all together using the thicker HONDA washer what a pleasure . The repair is still going strong after a couple years I managed to T-BONE a clown who jumped the stop street and give the front half of my van fat hair lip. The insurance assessors wrote the vehicle off. Due to the rust and corrosion.
    I did drive the vehicle home due to a pile of tools in the back and the presence of vulture tow and ambulance drivers who don’t take no for an answer.
    I have bought another second hand Vito with a rough idle due to what I am told by a diesel mechanic acquaintance, is too much diesel being delivered through a faulty injector.
    I brought up the previous repair experience of using a Honda Accord cu washer in my first Vito and he brought up fact that the injector spray pattern would differ from the Mercedes washers due to the thicker HONDA washer
    The thicker washer would /could create lubrication problems on the cylinder walls.
    Performance would /could be affected.
    I am a refrigeration and air conditioning mechanic by trade and a DIY’er by nature.
    I understand copper as I make flares from time to time.
    First rule of a good flare, DO NOT crush the living daylights out of it. Just create the shape. Let the tightening do the sealing.
    A thicker washer makes far more sense to me. More copper thickness /volume to take up the irregularities on the seal face.
    I would appreciate some feed back on my diesel mechanics worries.

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    • Steve Ball

      From Steve Ball on Mercedes CDI Injector leak - Honda washer/seal alternative

      Hi Roy,

      Thanks for the comment, up to my neck in stuff so little time to dedicate to the website as I might have liked at the moment, however to respond to your question:

      The Honda copper washers are by far more ‘malleable’, they appear almost annealed compared to the genuine MB ones that are very hard stamped and will not compress much, this you can tell. The complient softer material as you point out, in my view moulds better in the action of of tightening so is a superior repair to less than perfect surfaces whether due to erosion, corrosion or just the inadequacies of hand reaming. Either way not scientifically proven – just more common sense and basic physics.

      The comment regarding penetration depth of the nozzle holds some technical value. However if you think of the action of cleaning /refacing the alloy seat this would remove some material anyway and depending on the amount of work required would push the nozzle further into the head, a thicker washer simply compensates for that as you can imagine. You have to also remember that often engines undergoing this work have clocked up 100k plus in mileage. If the injectors are the originals, please don’t think the injector spray pattern will be anything like the day it left the factory anyway – so there is an uncontrolled variable to consider when digging too deep into the science and text book stuff.

      The injectors positional change into the head we are considering here is sub 1mm and in my opinion and experience the naked truth is, it makes little difference. No doubt others will argue – like what what tyres are best!

      All the best

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  • From Tony on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    Thanks for your help with the turbo limp mode this is my problem on and off.
    Do you know if you can fit a engine data scan to 2000 sprinter .Thanks for your help.

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  • From Val. Pastars on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    Your website has become a bible for me. I have a 2000 313 as a campervan which I have owned for about 4yrs and travel to VERY remote places. As with all my vehicles I have a Haines manual. I had problems with limp mode for about the first yr. I would stop switch off for maybe 10 sec start and it would run ok until the next time. Had it in with the ‘experts’ with no cure. Then one day it just cured itself. That in itself is a worry as I don’t know what it was. Another problem I had which I saw coming with harder starting, was the fuel pressure valve O rings. I was only a couple of hours from home so I opened the air filter and gave it a good dose of brake cleaner. It started and I drove home. The third issue was ‘ERROR’ relating to the key lighting up in dash display. the Haines manual says to lock lock and unlock the door with the key, which I did, and its been ok. Hope my dramas are uesful to someone else and thanks for a great informative site.

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  • From Bob t on Mercedes C Class (W203) Alarm Problems

    I own a C240 2004 wagon. For the longest time my lights would flash at odd and random times. Today I just finished replacing the siren. All is working well. I now have audible notifications – had not had that for a couple of years. The new siren cost was 140 dollars. Dealership wanted 80″ dollars to do this job……

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  • From Ali on Synchronising the single button IR Mercedes Key

    How can I open the rear viwe mirror, where last month I found water inside so i think there is bad contact or dust in IR sensor inside.

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  • From Mick on Mercedes Sprinter Turbo - Limp Home - Diagnosis and Fault Finding

    Great article and very well explained

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