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#1
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1995 E300D Monovalve Problem
I need to hear from all on this list or their friends whose '95 E300 diesel or very late production (~May 1993) 300D2.5 had a cracked/leaky monovalve (001 830 40 84). I need the VIN of the car that had the problem.
Having replaced my leaky monovalve three times with no success, today (11-07-2013) I met with the service manager and zone rep for Mercedes-Benz of Santa Rosa (California). Nice meeting, both were professional and understanding, agreeing that there must have been something wrong with the plastic when the monovalve/pump for the '95 E300 was made. Both agreed that telling customers to buy a $20 "radiator repair" kit at Cheapie Joe's Auto Parts was not an option. (That's what I finally did to fix my leak.) "What to do" was the big question. They finally decided that the service manager would file a "PTSS Report" (PTSS = Product Technical Support System) with Mercedes-Benz of North America for forwarding to Germany. I was told that such a report cannot be ignored, that a response is required. Two caveats: (1) it might take "some time" and (2) if I can come up with a list of others who have had this problem, showing that it isn't a me-only problem, the PTSS stands a much better chance of getting action. If you or anyone you know has had this problem with this monovalve, please let me know ASAP. If you don't want to post the VIN, please send me a PM or email. jeremy [at] cds1 [dot] net
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#2
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Now we are four
Update: The list of car with cracked monovalves has grown to four:
Chris (Ohio) Jane (California) Jeremy (California) Zulfiqar (Texas) I am waiting to hear back from Zulfiqar; once I have the VIN of his car I can go to the dealer's service manager who will then file the report. Having this problem on multiple cars all over the country will make it harder (but not impossible!) for Mercedes to ignore. Anyone else? Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#3
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I'll check mine. I haven't noticed any coolant loss. Possibly only a problem with high-mileage cars?
As I'm fond of posting, my car is only 50k.
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'85 300TD "Puff The Magic Wagon" - Rolling Resto '19 Mazda CX-9 Signature - Wife's sled '21 Morgan 3-Wheeler P101 Edition '95 E300d - SOLD '84 300TD "Brown Betty" - Miss this one '81 240D "China Baby" - Farm grocery getter |
#4
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High mileage indeed!
Quote:
Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#5
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PTSS Report
I now have five owners including myself with this same problem. The list went to the service manager at my dealer by email yesterday. He will file a PTSS Report with MBNA. Whether it will do any good is another question but at least I'll have the satisfaction of being dissed at a higher level.
1995 E300D owners with cracked/leaking monovalves
Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#6
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The list grows . . .
The list has grown to six current owners with the cracked monovalve problem:
‘Connerm’ PeachParts MercedesShop Forum member in northern Virginia. VIN WDBEB31E6SC0828XX. Jane, Monte Rio, California, who is a personal friend of mine and whose car has been serviced at Mercedes-Benz of Santa Rosa. The monovalve in her car is cracked but is not yet leaking. VIN: WDBEB31E4SC1396XX. Chris, Oberlin, Ohio. Has had the car since September 2011 and has had two cracked monovalves. First was on the car when he bought it; second was purchased as a replacement while visiting in Germany in 2011. VIN: WDBEB31E6SC1519XX. Michael, Lynnwood, Washington. His monovalve, like mine, has been replaced three times. The first two were by an independent mechanic who sourced the part from MB of Lynnwood. The third part was installed by MB of Lynnwood and it is now cracked and leaking. The picture Michael emailed me looks just like mine -- cracked in the same identical place. VIN: WDBEB31EXSC1771XX. ‘Zulfiqar’ PeachParts MercedesShop Forum member in Texas. VIN: WDBEB31E6SC1899XX. Jeremy, Santa Rosa, California. Owned since March 2012. Has had four (4) cracked and leaking monovalves: the one in the car when purchased, two new ones from the Classic Center, and one installed by Mercedes-Benz of Santa Rosa (California). VIN: WDBEB31E1SC2227XX.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#7
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no leaking on my '99 turbodiesel
My '99 E300D may have been in this category but the PO has vanished. He was a Forum member for a while and that's how I found the car. He stopped posting on the forum after he sold his 240D/123 so not going to find out the history on this issue. I don't recall him telling me that had to be replaced either, I surely would have remembered it because my W140 car (now gone to a parts heaven) had a monovalve replaced and the PO told me it cost him something like $520 (its easily three times more complicated than the W210 valve!).
The reason I wonder about the valve may have been replaced is because along with the vehicle came a trunk full of parts he accumulated during the several years he owned the car (the car was sold out of Sacramento, a one owner car until Anghrist bought it and used it 6.5 years). Anyhow, in the trunk was a monovalve, brand new still in the MB box. I just pulled the stuff out of storage to see what was there but it specs out to be for an E430 gasser. It doesn't even resemble a diesel valve. I suspect he bought it by mistake or was told it would fit his car then found it wouldn't. So, no smoking gun on my part to report and thus far no coolant leaking from my valve but if there is, you'll be the next to know! DDH
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting! |
#8
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+1
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CM |
#9
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They made it right!
To follow up to the earlier posts, Mercedes has reimbursed me for the $500 I spent (back in January 2013!) on the first (of three) replacement monovalves (all of which cracked and leaked). This reimbursement happened when the local service manager, Nick Stauer, of Mercedes-Benz Santa Rosa (California), spoke to the new factory rep for our area. She agreed to put in a request for a "reimbursement for leaking monovalve" (their words) and it was honored. I got the check yesterday.
This was on top of replacing the monovalve once themselves at no cost to me. Their replacement lasted less than a month but it confirmed I wasn't doing anything wrong when I did the work. Their actions are definitely above and beyond what one expects from car dealerships. I am pleased. All hail Nick Stauer and Mercedez-Benz of Santa Rosa (aka Smothers European). That it took three years is unfortunate (better for them if I had sold the car or died or moved away). Once I had patched the original monovalve (stopping the leak) the pressure was off and I didn't push as hard as I might have. It also suggests that the factory has no intention of getting their subcontractor to build a new, non-cracking part. This I expected from the beginning; why go to a lot of work to re-design a one-off component used in 3,000 cars 20 years ago? BTW, a new monovalve/pump (001-830-40-84) is now $900 or so I've been told. Caveat emptor! Also see: Anyone have a cracked monovalve in either 300D-2.5 or E300D? (W124)
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#10
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This one less than a week old and already leaking.
Sent from my iPhone using Tapatalk
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CM |
#11
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I thought all the w210 diesels used a duo-valve; two valves with two inlets and two outlets? Not saying it isn't susceptible necessarily, but it's clearly a different part. Also the plastic used in the w210 diesel duo-valve is black, while the defective one pictured here is brown. Appears to be a different plastic and/or different manufacturer.
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1998 E300 turbodiesel America's Rights and Freedoms Are Not The Enemy! |
#12
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95 is W124
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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 |
#13
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Quote:
'99 e300 is a w210, which is what dieseldiehard was asking about.
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1998 E300 turbodiesel America's Rights and Freedoms Are Not The Enemy! |
#14
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1995 E300D Monovalve Problem
Have to ask the folks that have encountered and ran through this issue.
Do the new valves break off at the elbow or would you guys think that it would be ok to keep driving and carefully maintaining the coolant level until I sort out a replacement through the parts warranty? The car overall gets about 5000 miles or less per year. I believe and think that I may be able to sort out a replacement and find the time to change it out of the car in about two weeks more or less? As always your expertise and advise is always appreciated. One think that has always intrigued me is the following. Would you guys think that they leak in between the cold side and the hot side of the valve itself as it leaks towards the outside as well? Sent from my iPad using Tapatalk
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CM |
#15
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If you leave the climate control setting to max cool, which should keep that valve closed, a catastrophic failure is unlikely. If you use the heat, and the leak increases, loss of coolant could destroy the engine.
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Respectfully, /s/ M. Dillon '87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted '95 124.131 (E300) "Sapphire", 380k miles '73 Balboa 20 "Sanctification" Charleston SC |
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