Tcu reset ?
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2014 CLS 550
Tcu reset ?
Forgive my ignorance, Have any of you did a tcu reset when you bought your used or cpo? I have one of my reps just bought an e300 and he was telling me I should do that. Funny I never read anything about that in the c218. Is this something I should do ?
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Joined: Jul 2019
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CLS400 4Matic EC Tuned
I think it's something you should do. I've known about it for a couple of months but just haven't had time to do it. They say you should drive for 15 minutes after you do the TCU reset so the transmission can learn how you drive. When I'm in sport and I'm not really driving aggressively, I've seen the trans go to 6th gear at 55kph and 7th at about 70kph. Maybe I should do the TCU reset, and drive aggressively for 15 minutes so it knows to not change gears so quickly in S mode.
It would be cool if the transmission learns how you drive in each mode though, but I doubt that.
It would be cool if the transmission learns how you drive in each mode though, but I doubt that.
Thread Starter
Senior Member
Joined: May 2019
Posts: 353
Likes: 56
2014 CLS 550
I think it's something you should do. I've known about it for a couple of months but just haven't had time to do it. They say you should drive for 15 minutes after you do the TCU reset so the transmission can learn how you drive. When I'm in sport and I'm not really driving aggressively, I've seen the trans go to 6th gear at 55kph and 7th at about 70kph. Maybe I should do the TCU reset, and drive aggressively for 15 minutes so it knows to not change gears so quickly in S mode.
It would be cool if the transmission learns how you drive in each mode though, but I doubt that.
It would be cool if the transmission learns how you drive in each mode though, but I doubt that.
I don’t have a tcu tune just an ecu tune
Last edited by Dblok1113; Jun 11, 2021 at 04:17 PM.
Senior Member
Joined: Jul 2019
Posts: 443
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CLS400 4Matic EC Tuned
Thread Starter
Senior Member
Joined: May 2019
Posts: 353
Likes: 56
2014 CLS 550
I just have an ecu tune no tcu tune yet. I did the reset and I’m shocked at how smoother my transmission shifts. Now I only did a few pulls with my dragy and I was slow af. (4.45 0-60 4.20 0-60 ) I’m going to get out and test it again here soon. The transmission is literally shifting like a brand new car. Now if I can get my 0-60 back to 3.9 the. It was worth it lol
Senior Member
Joined: Jul 2019
Posts: 443
Likes: 91
CLS400 4Matic EC Tuned
I just have an ecu tune no tcu tune yet. I did the reset and I’m shocked at how smoother my transmission shifts. Now I only did a few pulls with my dragy and I was slow af. (4.45 0-60 4.20 0-60 ) I’m going to get out and test it again here soon. The transmission is literally shifting like a brand new car. Now if I can get my 0-60 back to 3.9 the. It was worth it lol
Thread Starter
Senior Member
Joined: May 2019
Posts: 353
Likes: 56
2014 CLS 550
Last edited by Dblok1113; Jun 13, 2021 at 09:41 PM.
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Senior Member
Joined: Jul 2019
Posts: 443
Likes: 91
CLS400 4Matic EC Tuned
I drove for about 30 minutes and was hitting it pretty aggressively and let me tell you when I punched it before I would get an snorting hiccup in the shift. I was really mad about it and now it’s smoother than ever I can’t believe how smooth the shifting is after I did that, I’m actually shocked. Unfortunately I’m selling the car now. I’ve made the decision to get something newer with a warranty
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2014 CLS 550
