Should You Really Warm up Your Benz?
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IB Staff
Joined: Jul 2011
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Should You Really Warm up Your Benz?
Most of us know to warm up our engine or risk damaging it. But is that really the truth?
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MBWorld Fanatic!
Joined: Jan 2017
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From: God's County (Yorkshire)
Shanks’s Pony
and then there are the idiots that would warm their engines then go screaming down the road with every other component of the car (gearbox, diff, wheel bearings etc) still ice cold.
I was taught to idle the engine until it was running smoothy (days of chokes) and then drive off slowly and allow all the other components and the engine to warm up properly.
I was taught to idle the engine until it was running smoothy (days of chokes) and then drive off slowly and allow all the other components and the engine to warm up properly.
MBWorld Fanatic!
Joined: Sep 2007
Posts: 1,258
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From: Mississauga, ON CA
15 Mercedes C400, 12 Mercedes C250 coupe
I need to take another shot of my car like this but now my car is red 
that, and would need some snow! been a light one thus far this winter
that, and would need some snow! been a light one thus far this winter
Member
Joined: Mar 2015
Posts: 137
Likes: 10
From: Reston, VA
2011 CLS63 AMG
Power steering fluid, transmission fluid (or gear lube) differential oil, in addition to motor oil - are THICK when it's colder out. I used to be a mechanic in Denver, and can tell you that when the temps drop below freezing (and often I had the pleasure of working on cars at -20), you can't believe what the fluids in your car are doing, unless you see it first hand. Differential oil (90w) won't even drain out of the rear end at those temps!
Warm your car up according to the manual. The engineers in Germany know cold, and they're trying to help you
Warm your car up according to the manual. The engineers in Germany know cold, and they're trying to help you
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Member
Joined: Mar 2015
Posts: 137
Likes: 10
From: Reston, VA
2011 CLS63 AMG
Yeah, mine is the same. (Essentially). When I start the car, I usually keep the gauge on the oil temp. It flashes until it gets to 80°. No hot rodding until after that...
"Do not run a cold engine at high engine speeds. Running a cold engine at high engine speeds may shorten the service life of the engine. This is not covered by the Mercedes-Benz Limited Warranty.
CLS 63 AMG: At engine temperatures below 68‡ (20†), the engine’s maximum speed is restricted in order to protect it from damage. Avoid driving your vehicle at full speed when the engine is cold to prevent premature engine wear and/or diminished comfort."
"Do not run a cold engine at high engine speeds. Running a cold engine at high engine speeds may shorten the service life of the engine. This is not covered by the Mercedes-Benz Limited Warranty.
CLS 63 AMG: At engine temperatures below 68‡ (20†), the engine’s maximum speed is restricted in order to protect it from damage. Avoid driving your vehicle at full speed when the engine is cold to prevent premature engine wear and/or diminished comfort."
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