POURED PETROL IN DIESEL ENGINE… PLEASE HELP ME!!!! - Mercedes-Benz Forum

 
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post #1 of 8 (permalink) Old 11-11-2011, 05:05 AM Thread Starter
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POURED PETROL IN DIESEL ENGINE… PLEASE HELP ME!!!!

First of all I would like to say thanks in advance to anyone on this forum who writes back and provides me with any help or advice at all….. Please help me I have been getting 2-3 hours sleep max. for the last few days!!! This is worrying the crap out of me!!

Okay here is what happened.. I was driving my parents Mercedes Benz (2008 Model C220 CDI – Diesel Engine)… the tank was on reserve fuel… I accidently filled it up with just under 10 litres of petrol. Immediately I realised what I had done… so I asked the guy that works at the petrol station what I need to do… and he said it shouldn’t be a problem… just move your car to the side and take it to a mechanic so it can all get flushed out. There was a guy beeping his horn to use the diesel pump behind me… so I started the car for under a minute and just moved the car 5 metres forward so that the guy behind me could use the pump. (AFTER THIS HAD HAPPENED I DID NOT START THE CAR AGAIN.. I GOT IT TOWED DIRECTLY TO MERCEDES)

I then got it towed to Mercedes… when I went to Mercedes the service guy told me straight up front if the ignition has been turned on or the car has been started in any way… they would need to do a completely different type of service which was going to cost approx. £7,000 pound. Otherwise if the car hadn’t been started they would just flush the fuel tank & the lines and it would just cost me under a £650 pounds. I panicked at that point because I don’t have anywhere near £7,000 pounds… im just a student… so I just told them that the car had not been started at all.

Anyway they did the service… and this is what the invoice says they did;
FUEL TANK & LINES
2 X SEAL RINGS
REFILLED ENTIRE TANK WITH GAS

They have told me specifically that they did NOT do any of the following;
*Change the fuel filter
*Flushed the injector lines
*Checked the injectors & checked for any back leakage

This was all done 4 days ago… yesterday I was driving the car and I noticed that when taking off at the traffic lights…. If I pushed the accelerator slowly the car would just lag and eventually take off just fine.. however if I pushed the accelerator down a little faster the car would start to shake almost like a manual and the engine would stall/cut-off completley

The car has never had the problem before… so I can almost guarantee that it has something to do with the petrol incident and is linked to it. Anyway I have taken it back to Mercedes who have hooked it up to their computers and tested it all… and taken it for a test drive… They are telling me that they cannot find any faults with the car at all!!! (THEY HAVE NO IDEA YET THAT THE CAR WAS INITIALLY STARTED)

I don’t understand much about cars… but I am really afraid that petrol has gotten into the engine/injectors/fuel-pump/fuel-filter or whatever the case may be (like I said I don’t know much about cars)…. And can cause major damage if I continue to drive it!!! I just cant understand how much petrol could get into the engine if the car was just started and literally moved like a couple of metres…. Surely there is existing diesel fuel in the lines… (But I have been reading up … and apparently the new Mercedes have an extremely high pressure pump)…

The car has been driven approximately 200kms since it has been flushed and the incident occurred..

PLEASE can anyone give me any further advice on what I should do??? Or what you would do if you were in my same position… please… I have spoken to a few mechanics and they have told me that if petrol has got into the fuel pump etc… it would slowly begin to wreck other components and the long-term damage would be over £16,000 - £17,000 pounds!!!! I do not want to keep driving it if this is the case…. Is there anyone that I can take the car to that can check to see if petrol has got inside or is still inside the certain components of the car????

What do you think needs to be done to the car now?? Change the fuel filter & do a “back leakage check” on the injectors??? Somebody was saying that I can get a fuel sample report of some sort??? I have no idea what that means?

Thanks guys
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post #2 of 8 (permalink) Old 11-11-2011, 07:17 AM
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PLEASE can anyone give me any further advice on what I should do???
Suicide. If you're into drama, use a .45 ACP, if not, go with sleeping pills. Lots and lots of sleeping pills.

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post #3 of 8 (permalink) Old 11-11-2011, 07:56 AM
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If your parents do not know you put petrol in it, then do not sweat it. But change the fuel filter.

ERIC.

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post #4 of 8 (permalink) Old 11-11-2011, 08:57 AM
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Forget the horror stories, and as I and others have told you on the other forum, relax, keep putting the diesel in.

2005:

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post #5 of 8 (permalink) Old 11-11-2011, 08:46 PM
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Forget the horror stories, and as I and others have told you on the other forum, relax, keep putting the diesel in.
+1. Whatever gasoline that remained after everything was drained should be out of the system already. As mentioned by eric242340, change the fuel filter.
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post #6 of 8 (permalink) Old 11-11-2011, 11:09 PM
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^Yes changing the fuel filter will speed up the process but it really is just a matter of time, no damage should have been done.

ERIC.

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post #7 of 8 (permalink) Old 11-12-2011, 02:44 AM
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I know some TD guys that will run a gallon of gas to a tank of diesel, without problems.



But most of all this sounds fishy.

They changed the lines and the whole tank, but did not change the filter?

How exactly did they flush the injector lines without checking the injectors also, or checking for a leak? I mean they had to take it apart to flush the lines, stands to reason, you would check for leaks when you were done.




You need to find another mechanic spot, end of story.

Top five reasons I posted in your topic:

1. You're talking about god, there has never been any god of any kind. EVER!

2. I just have a general dislike of you.

3. I am trying to tell you how to fix your Mercedes and you are not listening.

4. I'm flirting with Jody.

5. You're just to dumb to own a Mercedes, and should go buy a Honda.
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post #8 of 8 (permalink) Old 11-14-2011, 06:27 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
HELP ME PLEASE – POURED PETROL IN DIESEL ENGINE… I CANT SLEEP!!!! - MBWorld.org Forums

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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