300DTurbo

I would like to confirm that the same 3.0L Turbo diesel V6 powers all four of these models?

If this is true im impressed at what a little 3.0 can do.

My 1984 3.0 Straight 5 Gets me from naught to 60 in 34 seconds with the turbo screaming.

isstay

Yes they do w/different power setup. There is a rumor about using 2.2 diesel in Sprinter.

300DTurbo

awesome, the little 3.0 that could.

DubVBenz

They do, but the newer versions have better turbos so they produce more power. Also, most of the Sprinters are slightly detuned, and in Europe would be sold as the E280 and E300 if they were in an E-Class, despite having the same engine.

300DTurbo

What do you mean by "detuned?"

Since the sprinter van is bigger wouldn't they want to tune to further as to get more power out of the motor?

houseofdiesel

There are differences to the trim of the engines, meaning turbos, intakes and exhaust manifolds etc. I think the block and heads are similar, however there maybe different options that change the block on sprinters like PTO etcs. No really positive. Jeep Grand Cherokee has the same engine but also different, only one air intake tube/air filter and different set ups. Detuned engines are to protect the lifespan of the engine and maybe improve emissions. Sprinters are going to be heavily loaded and tow, so the hp and torque is down slightly so they can run at full throttle and still last. The turbos for sure are unique to each application, slight trim differences. Belt setups are different between them too.
They tune these engines to the near maximum for heat and power, there is not alot left to get out them as evidenced by the aftermarket ecu flashes (10% more power, not 25 or more like other diesels).

DubVBenz

No, they sell different levels of the same van with the same motor at different tunes. It's the same thing as a W211 E280, E300 and E320 all having an OM642 motor. They can sell the E320 for more because it's setup to produce more power.

isstay

I do think that the engine and turbo are same (low cost and modular setup) but intake, ECU tune (amount of fuel delivered, timing) are different thus different power/torque levels depend on configuration (transmission/axle, 4Matic). For example W212 300 and 350 CDI use same engine 2,987 cc but they make are making from 204 to 265 hp and respectively 370 to 460 lb-ft.

Carsy

Do you have the OM 646 4 cylinder diesel engine of 2.148 litre capacity used in any vehicles in the USA ?

isstay

It is comming w/new GLK and the new C class, also there is a rumor to put it in Sprinter.

MBtech1098

The 4 cylinder that will be in the GLK is the OM651. The Sprinter 4 cylinder will come to the US.

CathalGildea

Hello,
First Post,

I've been looking everywhere for a post like this. I've been trying to find the answer if al OM642 engines are the same.

I have a 2008 S320 CDI (European car, Ireland)

Will any Om642 engine fit my car and my transmission?

My engine code is OM642.930 but cant find a replacement engine from an S-Class, only OM642.920 spares.

I know the sump pan is different and the engine cover but is there anything else?

Will it work?

Thanks
Cathal

DubVBenz

I know the by the time the W221 received the diesel in the states, it was using a twin scroll turbo producing around 265HP, so I think there's multiple versions floating around out there... May want to check on peachparts.com or the UK equivalent of epc , I think this might be a place to start: http://www2.mercedes-benz.co.uk/cont...tion.0002.html.

There's also a UK MB forum which probably has some better information than us.

CathalGildea

I've asked in UK forums but no one can give me a 100% answer. I asked an engine builder aswel and he said, crank, pistons, and cylinder head had the same part numbers so I assume it should just drop in if they use the same transmission.