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post #1 of 3 (permalink) Old 11-14-2011, 05:24 AM Thread Starter
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Hi Guys,

So far you’s have all been an extremely great help… and I really appreciate all the time you’s are all putting in to help me…

This is in relation to my previous post that I made… which can be read at the links below;
Help - petrol in a diesel engine!!!! - MBClub UK

Okay since then I have taken everyone’s advice and replaced the fuel filter with a new one… and this is exactly what the problem is with the car at the moment;

The car starts fine and runs absolutely fine for the first 5min of driving or so.. (basically until the engine warms up I presume)… After this period… when you are at the traffic lights for example… as you begin to take off… if you take your foot off the brake slowly and don’t touch the accelerator at all the car seems to take off fine, no problems at all (keep in mind the car is an automatic)…. However, if you take your foot off the brake and hit the accelerator… the car almost comes to a complete stop for a few seconds (as if it was a manual and it was about to stall)… and then takes off again…. Also I have noticed the car is making a strange noise when idling at the lights (but this could be just me..) But the other issue is a definite… because it happened at every set of lights I was at…

Most likely the reason why the dealer couldn’t find any faults with the car when they took it for a test drive… was because they didn’t take it for a drive long enough… to the period where the engine warmed up and the issues occurred…. (Also keep in mind that the computers have not picked up any faults with the car at all)

I have called a number of different mechanics… and none of them seem to have any clue as to what could be causing this type of issue… I also spoke to a one mechanic who thinks it may be an issue with the injectors… as the injectors provide/spray fuel into the system…. Another said to check to make sure that the cable/connector to the air hose is connected properly…

Would anybody be able to provide me with any assistance…as to what they may think this issue may be… I am taking the car to a specialist diesel mechanic tomorrow to see what he thinks the issue may be (he will undoubtedly charge me an arm and a leg)… I cant believe how much such a small mistake has ended up costing me… £140 pounds for the air filter replacement… towing on multiple occasions… I have already spent approx. £1,300 pounds in total and the car is still not fixed!!! It is a little depressing because it will take me another 3 months worth of working to save up that amount of cash….

So if anybody could please help me… it would be much appreciated…
Thanks heaps guys

(PS. The car has been driven for over 125 miles (200kms) now… so I would have presumed that all of the diesel had been flushed out of the system by now… and the issue would have been resolved… but it doesn’t seem to be the case)
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post #2 of 3 (permalink) Old 11-14-2011, 10:17 AM
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Welcome to BenzWorld.

You'd receive accurate responses and assistance if you complete your profile with your car model and location.

Then, you can go to the appropriate section relating to your car designation and post your issue, and fellow members will get back to you with the right answers.

Let me know if you need help,

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post #3 of 3 (permalink) Old 11-14-2011, 07:38 PM
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We don't have diesel section, so this one is the correct to post it.
Your original post says that the tank was refilled with GAS at the dealer.
Than why did your replace the AIR filter, not the fuel filter?
Usually 10 liters of gas diluted in tank of diesel have no effect on the engine at all, but I understand you added 10 liters of gas to just few liters of diesel and started the engine on high percentage of gasoline?
Please be precise in the problem description.

Last edited by Kajtek1; 11-14-2011 at 07:58 PM.
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