Shutting off engine after driving hard
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2012 CLS63
Shutting off engine after driving hard
My 2019 GLE63S operates at around 200 degrees Fahrenheit on a 70-80 degree day, driving it hard will rise it to 220ish. If i park the car should i let it cool down a little back to the low 200’s before shutting off ? Will doing so help or do nothing & is it advisable the last few minutes before getting home you drive calmly to avoid shutting off the engine while very hot.
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
Yes, very much so. Like a cool down lap at the track, you are supposed to take it easy for the last couple of miles before parking the car, so that the fluids can circulate and cool down the engine. You also don't wanna park it with hot brakes and let the parking brake engage as that could result in the pads to imprint on the rotors. At the AMG Driving Academy they requested that we leave the engines running after each stint and manually release the parking brake when getting out. That was with ADA USA at Laguna Seca. Interestingly when I attended one in Germany at the Nürburgring, they didn't bother, but the ambient temperatures were also much lower.
Thread Starter
Junior Member
Joined: Dec 2021
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2012 CLS63
That makes a lot of sense, i figured so i just wanted to make sure. I had hope cars these days would figure something around that but then again maybe not, engine needs coolant so shutting it off means coolant & pumps will be off. Don’t want hot turbos without Oil as well, thanks for the good insight 👍🏽💪🏽
Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
That makes a lot of sense, i figured so i just wanted to make sure. I had hope cars these days would figure something around that but then again maybe not, engine needs coolant so shutting it off means coolant & pumps will be off. Don’t want hot turbos without Oil as well, thanks for the good insight 👍🏽💪🏽
Thread Starter
Junior Member
Joined: Dec 2021
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2012 CLS63
Big time, that fan be working Overtime. I drove it hard tonight & was hanging out and was bothered by the fan so i started thinking it through. The front wheel wells were blowing steaming hot air. The turbos main cooling is the fan or the coolant ? Or they’re both working together i can see as well. I’m most definitely taking it easy with low rpm’s from now on when knowing i’m shutting off the engine.
Out Of Control!!
Joined: Nov 2018
Posts: 11,452
Likes: 5,352
From: San Francisco Bay Area
2019 C63CS
Big time, that fan be working Overtime. I drove it hard tonight & was hanging out and was bothered by the fan so i started thinking it through. The front wheel wells were blowing steaming hot air. The turbos main cooling is the fan or the coolant ? Or they’re both working together i can see as well. I’m most definitely taking it easy with low rpm’s from now on when knowing i’m shutting off the engine.
MBWorld God!
Joined: Dec 2019
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Anyone still remembers turbo timers? Good o'l days...
Anyways all the suggestions mentioned were good advice, after a spirited drive, make sure to leave the vehicle idling for a minute or so to let the turbo cool down then shut off the car.
Anyways all the suggestions mentioned were good advice, after a spirited drive, make sure to leave the vehicle idling for a minute or so to let the turbo cool down then shut off the car.
