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Diesel Leak

marcos

MB Enthusiast
Joined
Oct 6, 2003
Messages
1,313
Location
Hertfordshire
Car
C43 estate
I noticed yesterday that I had a slight diesel leak from the engine. Popped into my dealer only to be told to go home and ring Mobilo. The reason bieng that if they found the leak to be too bad they would not let me drive it away and didn't have any spare cars to loan me.
I was in a rush so went back to work and rang Mobilo. I explained the problem and they said an engineer would ring to let me know what time he could get to me. 10mins later the chap rang saying he was stuck in traffic and had to do a job in Watford first and would get to me about 5pm. He arrived 5 mins late and was very apologetic/helpfull and found the leak within 2 mins and 5mins later had fixed it using a jubilee clip to replace the crappy clip that MB fit. He explained that it's a common problem because the cars are fitted with the crap clips and they always leak.
I explained to him that I had already been to the dealers and he said that dealer service is getting worse and for most repairs, even when the car is driveable, to ring Mobilo.
I can't believe how lazy the dealers have become, I used to know everyone at my dealers by first name terms but they have all left disillusioned and have been replaced by brain dead muppets. I have written a very strong letter to MB but I doubt anything will come of it.
It is seriously making me wonder about another manufacturer for my next car, BMW, Audi maybe, if you read this Mr MB UK sort yourselves out or you will have no customers left to sell cars to.
 
Marcos, I phoned the same dealer last week to book my car in. For a courtesy car the earliest date they could give me was 21st December. It will be well overdue for the service by then! I have a couple of complaints with the car (the slow starting and cutting out after a long drive) and I have no confidence at all that they will be able to fix them.
 
I know they are very busy and I do have a little sympathy for them but customer service should be a priority with any business especially one with such supposedly high standards.
 
marcos said:
It is seriously making me wonder about another manufacturer for my next car, BMW, Audi maybe, if you read this Mr MB UK sort yourselves out or you will have no customers left to sell cars to.

Hi Marcos,
How can anyone attempt to defend the appalling standard of service you received from the dealer. If possible could you let us\me know of the response you get from Mercedes-Benz. This is NOT the sort of news any owner likes to hear. If the problem is as bad as the Mobilio technician alleges then Mercedes-Benz should really consider replacing these clips. (I certainly do not disbelieve what he told you).

Thanks again for this worrying message,
John
 
Where was this jubilee clip? Bit of a diesel stench for a couple of weeks now.

Dealer found a small seepage around an injector union leak but still a pong.
 
Its at the front end just undernesth the manifold. Had mine done at 24k
 
The clip he changed was to the left of the block on a pipe going into what looks like a filter. The clips are just push on things and seem to be a waste of time, he replaced it using a proper jubilee clip.
Throuble with diesel is a small leak makes abig smell and it takes ages for it to go, the other problem is the diesel settles in the sumpgaurd and that has a kind of foam insulator so if it isnt properly cleaned the smell stays for ages.
 
marcos said:
the other problem is the diesel settles in the sumpgaurd and that has a kind of foam insulator so if it isnt properly cleaned the smell stays for ages.

Hi Marcos,
I can certainly sympathise with what you are saying. Did you ask the dealer to replace the sump guard, or did he offer.

What I am thinking here is diesel is oil based and will not readily evaporate. Apart from smell, this foam might be considered a potential fire hazard! The leak was repaired under warranty so could the dealer also replace the 'damaged' foam insulation at the same time?

Kind regards,
John
 
What I am thinking here is diesel is oil based and will not readily evaporate. Apart from smell, this foam might be considered a potential fire hazard! The leak was repaired under warranty so could the dealer also replace the 'damaged' foam insulation at the same time?

Thanks John, I'll give it a go. ;)
 
It is seriously making me wonder about another manufacturer for my next car, BMW, Audi maybe, if you read this Mr MB UK sort yourselves out or you will have no customers left to sell cars to.[/QUOTE]


That why we went for 645I CAb in the end after the CLK 500 CAB incident.. ;)

Flash
 
umm same problem on mine 3 attempts to get the correct plastic tubes typical mbz main agent why do we use them ????
my next car will be a lexus defn not mbz
 
Dealer found and sorted a diesel leak very quickly. Nothing serious if caught quickly but you do not need much to make a huge stink and that helps. It was on the supply side to the injector pump hidden behind a (sort of) triangular metal guard plate so was difficult to spot even with the engine covers off.

Again was down to using iffy spring clips rather than decent jubilee clips. As far as I can tell in total there are nine of them in the fuel supply/return pipework in the engine bay!

From what I see here jubilee clips all round may become another mandatory mod.
 
marcos said:
Trouble with diesel is a small leak makes abig smell and it takes ages for it to go, the other problem is the diesel settles in the sumpgaurd and that has a kind of foam insulator so if it isnt properly cleaned the smell stays for ages.

I asked about that and the sump guard/noise insulator underneath the engine is cunningly made out of a material with is not harmed by oil/petrol/diesel, so on your way, Sir.

They had cleared most of it up but the guard contains many nooks & crannies where it can lurk and stink. It is also a swine to remove.

So to eliminate the diesel residue a high tech solution! Watering can with a bit of plastic hose on the spout, strong mix of car shampoo in warm water. Hose down to afflicted regions and flooded it with mixture, left it for a bit, rinsed & repeated twice.

Worked well: no residual pong this morning.
 
Took my sump guard and slung it after a leak serious fire risk done 10,000 miles without it no problems so far
 
I asked about that and the sump guard/noise insulator underneath the engine is cunningly made out of a material with is not harmed by oil/petrol/diesel, so on your way, Sir.

True it is not harmed by the fuel but the fuel stays in it and the smell just hangs around, I have flushed it about 20 times now with buckets of soapy water and it's getting there. ;)
 
marcos said:
True it is not harmed by the fuel but the fuel stays in it and the smell just hangs around, I have flushed it about 20 times now with buckets of soapy water and it's getting there. ;)

Hi Marcos,
You have certainly done your best in asking the dealer to replace the tray, but I would NOT be a happy 'bunny' if I had to do what you have just described.

The service (or lack of) that you have received gives the impression that it does not reach the high standards that we should perhaps expect from this excellent marque??

Good luck in removing the 'pong'

Regards,
John
 
Satch said:
I asked about that and the sump guard/noise insulator underneath the engine is cunningly made out of a material with is not harmed by oil/petrol/diesel, so on your way, Sir.

They had cleared most of it up but the guard contains many nooks & crannies where it can lurk and stink. It is also a swine to remove.

So to eliminate the diesel residue a high tech solution! Watering can with a bit of plastic hose on the spout, strong mix of car shampoo in warm water. Hose down to afflicted regions and flooded it with mixture, left it for a bit, rinsed & repeated twice.

Worked well: no residual pong this morning.

If it persists try Engine Cleaner - Gunk. ;)
 
watsone91 said:
Took my sump guard and slung it after a leak serious fire risk done 10,000 miles without it no problems so far

You won't have any problems other than increased air resistance, possible overcooling and additional noise.

The chances of a diesel fuel fire are very slim indeed. A blowtorch usually can't light a diesel spill without a wick, it will simply boil it off.
 

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