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#1
02-23-2019, 10:22 AM
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2006 E320 CDI thermostat?
Hey folks,
Just picked up an 06 E320 CDI, 296k miles. Driving it home noticed it seemed like wasnt getting much out of the cabin heat, seemed like I couldnt get it to blow hot. Noticed the engine temp indicator seemed low to me. About what temp Celsius should it be when up to full operating temp? It was hovering around 40. to 50. Celsius Wondering if there is a possibility of stuck open engine cooling thermostat. Thanks! 
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#2
02-23-2019, 11:01 AM
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90C
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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
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#3
02-23-2019, 04:58 PM
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Quote:
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-- Chris '95 E300, 216k miles, Silver Surfer '05 E320 CDI, 138k miles '07 S550 4matic, 69k miles Gone but not forgotten: '76 300D, 350k miles?, SOLD in 1995  '75 240D, 300k miles, SOLD in 1991
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#4
02-26-2019, 05:02 PM
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Common failure of stuck open thermostat. I've changed 3...2 on the same car. Easy change. Hardest part is getting the fan/shroud out, and even that is not too hard.
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Mark in MA 05 MB E320CDI 402k Granite Grey Metallic 05 MB E320CDI 267k Black 05 MB E320CDI 232k White 05 MB E320CDI 209k Tectite Grey 99 Dodge 2500 Cummins 5sp 148k 62 Jeep CJ-6 120k
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#5
02-27-2019, 12:49 AM
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Yes sounds like it’s time. They’re like $30 iirc and easy to change. Put a new gasket in too if it doesn’t come with one. Don’t overtighten the 3 bolts though, they will break. (Not that I would know personally
 )
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2005 E320 CDI - Totaled
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#6
02-27-2019, 10:41 AM
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Here's a good video:
https://www.youtube.com/watch?v=jiV9uhjwTQQ Doesn't look like this guy needed to remove the fan shroud.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 161k miles 06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 147k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 81k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife
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#7
02-28-2019, 12:05 PM
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You're right...my bad. My brain was thinking water pump. Thermostat is even easier.
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Mark in MA 05 MB E320CDI 402k Granite Grey Metallic 05 MB E320CDI 267k Black 05 MB E320CDI 232k White 05 MB E320CDI 209k Tectite Grey 99 Dodge 2500 Cummins 5sp 148k 62 Jeep CJ-6 120k
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#8
03-01-2019, 11:04 AM
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Update,
I changed out the thermostat. It was real easy to change. Fixed the issue. Engine now warms up to 92C. Does the 211 CDI default to limp mode until it's up to operating temp? when I bought it Car seemed to be stuck in limp mode, would not rev past 3000k rpm and trans would not downshift. Changing the thermostat appears to have fixed this issue ;o)
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- 2006 E320 CDI 297k miles. Egr delete. Rocketchip tune Stage 2. - 2002 Dodge Ram 3500 Dually 5.9 Cummins HO. 6 speed. 225k miles. Fuel boss mech fuel pump. Puke bottle delete. - 99 VW Beetle TDI 325k miles. Egr delete. Rocketchip Vag-switchable stages 1-3. PP520 injectors. (  Blown Head Gasket)
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#9
03-01-2019, 11:12 AM
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No it does not default to limp mode until it gets up to operating temperature. Weird that replacing the thermostat resolved the issue.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 161k miles 06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 147k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 81k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife
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Linear Mode
