Help with Vito Traveliner 2004: Fuel Consumption gone up after service

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Einstein III - 22 Feb 2005 17:40 GMT

I took my Vito (2004 model) to MB dealership for 34000 mile service.

Immediately after that the diesel consumption went up. I now get 28 miles
per gallon.

Before the service I used to get 34 mpg. I took it back to the dealer and
although they confirmed that fuel consumption was up, they don't know what
has caused this.

Right now, they have no solution to the problem.

Is there anything that I can do.....or do I have to live with it.

Any advice would be welcome.

Thanks in advance....

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William P.N. Smith - 22 Feb 2005 19:11 GMT

>Before the service I used to get 34 mpg. I took it back to the dealer and
>although they confirmed that fuel consumption was up, they don't know what
>has caused this.

I'd check for fuel leaks. It's probably way different nowadays, but
the return lines that port unused fuel back to the tank in earlier
diesels used to get cracked and leak... Can you smell diesel fuel
near the engine?

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Einstein III - 23 Feb 2005 10:16 GMT

Thanks for the tip.

No smell of any fuel leak but I will ask the question at next service.

Regards

>>Before the service I used to get 34 mpg. I took it back to the dealer and
>>although they confirmed that fuel consumption was up, they don't know what
[quoted text clipped - 4 lines]
> diesels used to get cracked and leak... Can you smell diesel fuel
> near the engine?

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Martin Joseph - 23 Feb 2005 18:29 GMT

> I took my Vito (2004 model) to MB dealership for 34000 mile service.

What exactly did they do to your vehicle?

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Einstein III - 24 Feb 2005 09:20 GMT

Hi Martin

According to the invoice, they have changed the Engine Oil, Oil Filter,
Pollen Filter and Fuel Filter.

The car runs smoothly as before and there dosen't seem to be any other
changes.

Hope you can help....

Thanks in advance.

>> I took my Vito (2004 model) to MB dealership for 34000 mile service.
>
> What exactly did they do to your vehicle?

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Paul - 24 Feb 2005 12:39 GMT

Did they possibly change the type of oil, for instance from a 5w-30 syn to
a 20w-50 dino? This could cause a loss of mpg.
Paul

> Hi Martin
>
[quoted text clipped - 11 lines]
> >
> > What exactly did they do to your vehicle?

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Einstein III - 24 Feb 2005 15:28 GMT

Hi Paul

I have no idea about the oil, but I will ask them and see what happens.

Thanks for the tip. I will let you know what happens.

Thanks again.

> Did they possibly change the type of oil, for instance from a 5w-30 syn
> to
[quoted text clipped - 16 lines]
>> >
>> > What exactly did they do to your vehicle?

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