Viano with OM642 - service data and procedures.

[Droverunner]

In advance of my Viano arriving in a few days I've looked around the forum with search and not really found an answer to where is best for information on service data and methods plus repair procedures.

Any pointers appreciated.

 

[M80]

The service booklet will detail as needed.
Repair methods are best asked about as the need arises.

You didn't mention history.

As the engine takes 9.5 litres the oil service can be good for 22k miles, depending on usage style. Personally if it calls for an annual service I would ignore that.
Remove the air filter and inspect, a good clean can serve purpose.
Same for the cabin filter.
Fuel filter if original change it, or good for 30k+
The aux belts (2 of 'em on yours) are a bitch to replace, but check for degradation carefully.
Coolant should be ok for a few years yet, unless discoloured.
History of any auto box service would be v useful, the 1st wants to be around 40k miles, many say each 40k but I would happily run it a bit more for following services.

As you remove filters and the like look for the date and that can pretty much confirm service history (approximately).

If it's had a hard life consider replacing diff fluid (v specific fluid), cost perhaps less than £20.

Opie oils is a good source.
Febi Bilstein products are good.

I have a spare air filter / turbo seal for if you prefer to replace that. Bought it for my 2009 but didn't use it. They are known to leak. I ran a bead of silicon around the inner and outer surfaces while still dry as prevention.

There are a few considerations and things to look out for on the 642. You'll soon familiarise yourself.

 

[Droverunner]

OK thanks. When it arrives and I've poked about I'll know loads more and I'll ask specifics if I can't find a Youtube how to. With a new to me vehicle I have a generic major service list of about 30 operations I go through regardless of claimed history and as you say pulling the filters checking their date codes tells a story.

Yes Opie are good... I've used them a lot for stuff like some very specific transmission oils for a BMW 5-series I had two cars ago and Febi have been my go-to brand for wife's CLK parts.

 

[M80]

pulling the filters checking their date codes tells a story

The biggy for me is the date on the ATF filter (and manufacturer come to that).
From MOT's if nowt else we get a trend of mileage / time and can then approximation place an ATF service within the history.

What's the spec, leccy side doors, sunroof/s, heated seats?

 

[Droverunner]

Spec... ha ha. No idea... bought unvisited to be delivered on a transporter. Not seen sunroofs in pic. Has Command I think because there is an SD slot above the CD slot... so might have the other higher spec items like elec doors. It will all be an interesting surprise.

Don't think me reckless... I'm used to buying/selling higher value items unseen from a distance and with cars just do the most intensive research around HPI/MOT history/Gov available data/seller questioning/images.

It is in for MOT at this very moment which of course I can check online so that will give something of a baseline for condition.

Edit: MOT pass with one advisory re a cloudy tail light... good start.

 

[Droverunner]

I'm staying calm on all other "before it arrives purchases" but always change engine oil and filter never mind when it was last done... so I 100% know it has decent fresh oil before I start rushing it about.

Assume this is the correct stuff for a 2012 OM642?

10L Genuine Mercedes 5W-30 Low SAPS Diesel Engine Oil MB229.51 Fully Synthetic

 

[Wighty]

I'm staying calm on all other "before it arrives purchases" but always change engine oil and filter never mind when it was last done... so I 100% know it has decent fresh oil before I start rushing it about.

Assume this is the correct stuff for a 2012 OM642?

10L Genuine Mercedes 5W-30 Low SAPS Diesel Engine Oil MB229.51 Fully Synthetic

Yep that’s the right oil buddy . You have the same engine as in my E320cdi (ish)

 

[JBell]

Assume this is the correct stuff for a 2012 OM642?

10L Genuine Mercedes 5W-30 Low SAPS Diesel Engine Oil MB229.51 Fully Synthetic

229.52 now

Gulf Formula CFE 5w30 Syn Engine oil ACEA C2/C3 / MB 229.52 APPROVED 20L | eBay

YOU ARE NOW BUYING 1 X 20 LITRE GULF FORMULA CFE 5W30 SYNTHETIC ENGINE OIL - MB 229.52 APPROVED. ACEA C2 / C3. MB 229.52, 229.51, 229.31. Active cleaning agents reduces piston deposits and sludge build-up facilitating extended engine life.

www.ebay.co.uk

 

[JBell]

Air Filters

NEW Genuine Mercedes-Benz OM642 300/350 CDI Engine Twin Air Filters A6420940000 | eBay

Unsure on Suitability?. 100% Genuine Parts. Isle of man. Engine Oil. Engine Servicing. Engine Parts. Isle of White.

www.ebay.co.uk

 

[Droverunner]

Thanks guys... I double checked with Mercedes and they say 229.51 correct for my car... 229.52 spec upgrade for newer vehicles or if you want to treat an older one.

 

[Droverunner]

Blimey those air filters are a bit pricey... might have the vacuum out! Wonder what the interval is on them?

 

[JBell]

Blimey those air filters are a bit pricey... might have the vacuum out! Wonder what the interval is on them?

They will prob need replacing. The interval is 4 years, I do mine every 2 as they get so dirty.

 

[M80]

There's just one air filter on yours,
same as the 2.1

 

[JBell]

Thanks guys... I double checked with Mercedes and they say 229.51 correct for my car... 229.52 spec upgrade for newer vehicles or if you want to treat an older one.

At £70 for 20L treat it

 

[M80]

Air Filter fits MERCEDES VIANO W639 3.0D 06 to 14 Bosch A0000902551 A6420900051 | eBay

Find many great new & used options and get the best deals for Air Filter fits MERCEDES VIANO W639 3.0D 06 to 14 Bosch A0000902551 A6420900051 at the best online prices at eBay! Free delivery for many products!

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But if you don't like saving dosh

AIR FILTER REPLACEMENT PANEL K&N M-1989 For Mercedes VIANO 3.0 V6 2003-2015 | eBay

Find many great new & used options and get the best deals for AIR FILTER REPLACEMENT PANEL K&N M-1989 For Mercedes VIANO 3.0 V6 2003-2015 at the best online prices at eBay! Free delivery for many products.

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[Droverunner]

>>>At £70 for 20L treat it

Wife's CLK due a service soon so I reckon I could get away with buying that and charging it to her with 10+ lit left for my next service.

 

[Droverunner]

Because I'd put the oil JBell mentioned into Ebay watch I've just been offered it at £64.99 inc post... what a bargain for 20l!

 

[Wighty]

Because I'd put the oil JBell mentioned into Ebay watch I've just been offered it at £64.99 inc post... what a bargain for 20l!

What , you mean the company has contacted you and offered you a discount because you had it on a watch list ?
I didn’t know that something that happened

 

[Droverunner]

Yes often if you watch something and don't buy then the offer comes in. I know it from the other side as a seller previously using Ebay for a business. I would get a message asking if I wanted to offer all or any of my watchers a discount and I could choose within a certain discount range.

 

[JBell]

What , you mean the company has contacted you and offered you a discount because you had it on a watch list ?
I didn’t know that something that happened

Yup, if you watch a product on E-Bay sometimes the seller can put an offer on it for anyone watching for a limited time. I payed less than DR