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#1
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How are the W211 Bluetecs?
Just curious if anyone has any thoughts on the Bluetecs. People here seem to really love the CDIs, and I just wonder why I never hear anything about these cars. I realize that they use AdBlue. Are there any major reliability issues with it, or is it just too expensive for the average forum member here ?
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." Last edited by Mölyapina; 12-06-2015 at 10:58 PM. |
#2
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EDIT: I didn't realize that the W211 Bluetec utilizes a DPF, but no AdBlue...
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#3
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the OM642 is much more complicated and much more needy.
The oil coolers will leak until the new purple Viton seals are installed. The intake manifolds will need to be replaced due to the plastic flap linkage wearing out from excessive carbon build up. EGR faults due to excessive carbon build up in piping to the intake. Timing chains will stretch to the point where you get a nasty chain slap noise at cold start. The DPF filter will become clogged. All these issues seen usually before 100k miles or not to far after. This is all personal hands on experience with this engine not hear say.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#4
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Yep, the 642 is just more complex, harder to work on, repair intensive, and not as durable. The 648 seems to pack on the miles with very little besides regular maintenance.
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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it! '85 190D 2.2 Auto *Cali* (Blue/Blue) *sold* http://badges.fuelly.com/images/sig-us/302601.png http://i959.photobucket.com/albums/a...0/sideview.png |
#5
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Well then.
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#6
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The mannerisms of the Bluetec are completely unlike a Diesel. Drive one of these, and you are positive it's a gasser V6 under the hood. The 7 speed transmission is so smooth. That engine never feels iike you are revving it up.
Well.... I guess it is a V6, but still...
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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12 1982 380SL 1978 450 SEL 6.9 euro restoration at 63% and climbing 1987 300 D 2005 CDI European Delivery 2006 CDI Handed down to daughter 2007 GL CDI. Wifes |
#7
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We have a 2008 E320 Bluetec
Bought new. We have had NO repairs on this car. Only by-the-book preventive maintenance by our unusually excellent and honest dealership (McGeorge in Richmond, VA). This is my wife's ride and I am forbidden to do anything to it even though I do all maintenance on my 1983 300CD.
The car is rocket ship fast and a great place to sit but I don't like it as much as I do my 1983. This is definitely not a DIY car. The systems are complex and when the plastic engine cover is removed the underhood looks like a jumble of spare parts thrown into a box. Moly, based on your posts, I don't think you would like it. It doesn't have the W123 soul and maintenance accessibility. |
#8
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Quote:
My brother bought an '06 CDI new and is still driving it. It's needed 3 minor repairs in 10 years. Come to think of it, that's the same number of repairs the bluetec has needed so far. |
#9
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Just curious...what are the alleged advantages of the OM642 over the OM648?
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#10
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I own a 2008 Bluetec. No exhaust fluid required but a special motor oil is required (A version of Mobil 1 that meets the MB spec.). I bought the car used with 93,000 miles 2-1/2 years ago. It now has a little over 160,000 miles. No engine maintenance except oil and filter changes. Did change the serpentine belt at 100,000 miles --- the old belt looked perfect and it is riding in the trunk, just in case. The local mechanic did a pre-purchase inspection and found oil weeping from the usual oil cooler gasket/o-ring and the dealer lowered the price $1,000 instead of fixing it. Now 67,000 miles later the oil is still weeping but not enough to add oil before the 10,000 mile oil change interval. The oil pools in the plastic belly pan so there is no dripping on the garage floor. There is a lot of labor involved in replacing the cheap part to stop oil leak --- I will not have it replaced unless the rate of leaking increases. I paid $17,000 for the car and I am very happy with it. I would make the same purchase if I had to do it all over again. There have been two repairs to the car since I bought it. One involved a loose electrical connector inside the driver's side B pillar that was causing a faulty "fasten seat belt" message. The other was a problem with the trunk latch which was replaced. The original owner replaced one lower ball joint and there were some sensors replaced very early in the cars life. This car is repaired by the book - no shortcuts. So, all other "repairs" have been recommended preventive maintenance items.
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#11
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It met tougher environmental standards.
It is shorter than a straight six so it could fit in a variety of chassis. ( I am pretty sure I could fit one into my SLK.) Powerful, efficient, intimidating to look at to a DIY'er.
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Greg 2012 S350 BlueTEC 4Matic 2007 ML 320 CDI 2007 Leisure Travel Serenity 2006 Sprinter 432k 2005 E320 CDI 1998 SLK230 (teal) 1998 SLK230 (silver) 1996 E300D 99k, 30k on WVO Previous: 1983 240D, on WVO 1982 300D, on WVO 1983 300CD, on WVO 1986 300SDL 237k, 25k on WVO (Deerslayer) 1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix 1983 380 SEC w/603 diesel, 8k on WVO 1996 E300D 351k, 177k on WVO Last edited by GregMN; 12-08-2015 at 11:16 AM. |
#12
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It meets newer, tighter emission standards and hence is legal to sell. The om648 was too dirty to be legal under new standards introduced in both the U.S. and Europe in the 2008-ish timeframe.
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#13
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I have the OM642 in my wife's 2008 ML320
We picked an 08 because it was the last year in that series that does not require DEF 126 k miles...so far the only major hiccup has been glow plugs. It does need the special oil so a DIY oil change is around $100 or so. Very intimidating to look at especially compared to an IDI inline engine.
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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 |
#14
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I'm not sure why everyone dislikes the DEF. You fill it up with each oil change 10k miles (in my case probably 2 years) and it's less than 50 bucks...
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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it! '85 190D 2.2 Auto *Cali* (Blue/Blue) *sold* http://badges.fuelly.com/images/sig-us/302601.png http://i959.photobucket.com/albums/a...0/sideview.png |
#15
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It's not the DEF per se but the fact that MB deletes the spare tire for the reservoir.
Run flat tires are very expensive, 2x the cost and 1/2 the life of regular tires. Especially 19's as used on the MLs.
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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 |
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