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#1
03-18-2006, 01:01 AM
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EGR & Engine Temp
Since my EGR "got broked" I've noticed that the engine takes a lot longer to warm up and never runs above 75C. At times it will runs around 65C. I would suspect that the engine would run cooler if you're not putting exhaust gases into the intake, but should it run this cold? When I turn on the heater, engine temp will drop to 60C and the air isn't warm. Any thoughts or suggestions? No, "Un-breaking the EGR" isn't an option. Thanks in advance!
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Roc '74 350SLC (Euro) (For Sale) '01 CLK55 '02 Jaguar XK8 '04 E320 Wagon '89 Ferrari Mondial T Coupe '57 Volvo PV-444 (Vintage Racer in build) (For Sale) '80 Mazda RX7 Enduro Race Car (For Sale) 
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#2
03-18-2006, 01:24 AM
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Check your thermostat. Disabling the EGR shouldn't cause engine temps to drop like that.
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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate Sooner or later every car falls apart, ours does it later! -German Narrator in a MB Promotion Film about the then brand new W123.
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#3
03-18-2006, 09:29 AM
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The 617's are cold beasts. This one typically takes at least 10 minutes to reach 80°C. if the boost is not used.
If you are not making 80°C. then the thermostat is the likely culprit. This is especially true since your lack of heat seems to confirm the engine is running cooler. The loss of EGR won't affect the final temperature allowed by the thermostat.
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#4
03-18-2006, 09:31 AM
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Don't sweat the EGR "breaking" a lot worse could happen.
 I think the t-stat needs to be attended to to correct the engine temp problem. I believe that they are 2 unrelated problems.
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1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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#5
03-18-2006, 11:53 AM
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Thank you all! I'll change it this weekend. Considering replacing engine with a new Audi R-10 Diesel! Yeah, right!
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Roc '74 350SLC (Euro) (For Sale) '01 CLK55 '02 Jaguar XK8 '04 E320 Wagon '89 Ferrari Mondial T Coupe '57 Volvo PV-444 (Vintage Racer in build) (For Sale) '80 Mazda RX7 Enduro Race Car (For Sale)
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