Do you have the OM642 (V6) or OM651 (I4)? If you say twin turbo that's a 651 and I have to say I have never seen a 651.

I was speaking about the OM642, they have 2 filters outside the wings and so there's a y-pipe that joins them together to go into the single turbo inlet. There's a MAF in each leg of the Y-pipe coming from each air filter.

Sorry for the confusion.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

OM651 has one air-mass sensor. Right on the front of the engine and easy access, can be changed in about 4 minutes.

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98 Dodge-Cummins pickup (137K)
13 GLK250 (157k)
06 E320CDI (341K)
16 C300 (89K)
82 300GD Gelaendewagen (54K)

OM651 (I4)

I should change that myself.

Thanks all for your helpful comments!

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

It is finished. I went by and talked about a mbca discount. The dealership just changed hands so it is not clear to the fellow in service what he should do. He said he'd look into it and get back with me.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I obtained a $230 discount because of mbca membership. I will go pick it up now.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Tom - you may want to report on your club discount on the MBCA website. Thanks. ,

Good idea!

Thanks!

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Silver here I finally got my e250 inspected today it took better than 400 miles to run all
The monitors .also the trainsmission seems to have re programs also accelerator pedal is a
Lot more sensitive when I get things sorted out do some fuel mileage calculations
Silver

Sounds good?

I drove up to Michigan city today in 30 mph winds. The ML got moved around pretty well but it ran like a top with plenty of power everywhere. Me, the Mrs. and the little black dog.

It is a beautiful day but a bit chilly. It is supposed to be warmer tomorrow.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

My GLK250 went in for the emissions modifications on Monday. Took the dealer two days to complete and I've had it back for about 400 miles.

I can't tell any difference in power of fuel mileage, actually seat-of-the-pants feel is that it might actually have a little more torque. Haven't done a manual mileage calculation yet but on a normally traveled route the fuel guage seems to be dropping at the same rate if was before the mods.

The list of parts on the invoice is pretty extensive, most of the entire exhaust system was replaced as well as the NoX sensors and particulate filter.

Interestingly there are also line items for a transmission filter, 2 liters of fluid, the standpipe and transmission pan gasket? It appears the transmission firmware was also updated because I've now have the 'DX' display in the instrument cluster that displays the current gear the transmission is operating in - before the mods the cluster just said "D". I like this feature as I find it interesting to see what gear the super-smart transmission is selecting for different road conditions. Not sure why the updating of the firmware or the emissions mods required the removal of the transmission pan but the line items are definitely on the invoice - I'll ask the service advisor next time I'm around the dealers area.

When I initially fot the car back the transmission shifting was a bit clunky, I'm assuming because the adaptations weren't set, now its back to buttery smooth after 400 miles.

Very happy with the mods - My service advisor told me the bill to Mercedes is in the $5K range, not sure the $5k wouldn't be better spend reducing emissions in other applications/areas but I'm happy I've got a cleaner car with the same performance as before the mods.

__________________
98 Dodge-Cummins pickup (137K)
13 GLK250 (157k)
06 E320CDI (341K)
16 C300 (89K)
82 300GD Gelaendewagen (54K)

That is a super bonus, you got a free transmission service and a new VGS. Assuming they replaced the VGS because if it was just a reflash they could have done that with the computer over the CAN bus. They would not have had to open the transmission otherwise.

The VGS replacement is almost $2000 and it has to be done at the dealer because the VGS is a Theft Relevant Part and cannot be sold over the counter.

__________________
The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

I might be in the market for a car later this year, or next year. If I get a modest car (instead of a sports car), it would probably be an E250 Bluetec. From what I'm reading, it doesn't seem like there's any reason to be weary of an MB diesel involved in this recall. Am I missing anything?

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NOW: 2017 C43 AMG, 2006 Wrangler Unlimited Rubicon, 1966 230SL, 1980 450SL (for sale!)
PAST: 2006 C230, 1997 E300D, 1994 E420, 1994 Neon Spt Cpe, 1984 300ZX, 1983 Celica GT, 1976 Electra Limited, 1984 Honda Nighthawk 650, 1979 Suzuki PE175, 1978 Suzuki DS100
www.mbca.org - www.sl113.org - www.ohio4x4.com

You have to do your research. The Mercedes warranty is not as comprehensive as the Vokswagon dieselgate one. Volkswagon covers the whole engine and all sensors. Up to ten years after production. Plus the total emission system.For about 120K miles.Or ten years as well. Whatever occurs first. The cure is to recycle the exhaust gasses where the cheat was to stop the circuit working. Volkswagon did it to reduce the amount of warranty work.

The only reason we purchased a Volkswagon buyback. There is a clause in the extended warranty that the customer is always right. Past experience with their products customer service. If that clause was not there. We would not have purchased the car. The government side of the negotiations like myself. Some negotiators may have also dealt with their customer service. In my opinion and it is just an opinion. Constant short trips around a city area are not the best ideal for modified systems.Or even the unmodified ones. These modified vehicles do better with extensive highway use. Again it is just a suspicion of mine. Expensive components in the emision system last far longer i suspect. If the car comes off the much higher percentage of highway use we will sell it.

There is a 4yr/50K warranty on the newly installed parts, my GLK250 had 112K miles on the clock when the mods were installed - the only emissions related issue I had over that timeframe was a bad DEF tank level sensor. The sensor is replaceable but most dealers just opt to replace the whole tank for $1200.

I agree with Bare that these after treatment systems seem to be less prone to trouble if the vehicle is used more in a highway environment. My GLK has had almost zero pure city/low speed/idling use.

Its sort of hard to say how these systems will hold-up longer term, many people have had issues. I've had a mostly great experience - the 4yr/50K coverage on the mods is a nice safeguard against future issues but I'd have to agree with Tom. It'll take a 100K to be sure.

One thing for sure... if there isn't any warranty coverage and you have an issue things can get expensive fast. Finding people that have the tools/experience/knowledge to do intelligent diagnosis and repair isn't easy either.

__________________
98 Dodge-Cummins pickup (137K)
13 GLK250 (157k)
06 E320CDI (341K)
16 C300 (89K)
82 300GD Gelaendewagen (54K)

That's whats kind of confusing, I could see a software update since the car has been running with the same transmission software since 2013. It's a very early USA OM651 but they could do that without dropping the pan. It seems likely they replaced some of the hardware and the 2 liters of fluid would be consistent with a VGS replacement.

I'll pull the receipt for the work and run all the parts number to see if there was a VGS in there somewhere. There were around 20 parts on the invoice and I only ran 4-5 of the numbers.

__________________
98 Dodge-Cummins pickup (137K)
13 GLK250 (157k)
06 E320CDI (341K)
16 C300 (89K)
82 300GD Gelaendewagen (54K)