GLC63s, GLC63, GLC43 AMG SUV and Coupe (X253, C253) 2015 - Present

AMG 43 GLC - TCU Tune ??

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Old Oct 1, 2020 | 07:29 PM
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Blk/Blk GLC43 AMG WAGON
AMG 43 GLC - TCU Tune ??

Has anyone here done the TCU tune in addition to the EC Stage 1 Flash ?
The EC flash can really be felt from 4th gear on but I feel I am leaving a lot on the table
because MB limits torque in 1-2-3.
Don't get me wrong I can still feel a difference but down low I am not feeling the full 528 lb/ft of twist.
I really think the TCU tune will absolutely transform this car around town.
Def on my short list as my next mod but it's actually more expensive than the Stg 1 Tune.

Curious if anyone has any experience with this on a 43 (I know the 63 guys are seeing it)

Cheers,
AFT

Last edited by affalterthought; Oct 2, 2020 at 06:59 AM.
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Old May 29, 2025 | 08:29 AM
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Glc43
Originally Posted by affalterthought
Has anyone here done the TCU tune in addition to the EC Stage 1 Flash ?
The EC flash can really be felt from 4th gear on but I feel I am leaving a lot on the table
because MB limits torque in 1-2-3.
Don't get me wrong I can still feel a difference but down low I am not feeling the full 528 lb/ft of twist.
I really think the TCU tune will absolutely transform this car around town.
Def on my short list as my next mod but it's actually more expensive than the Stg 1 Tune.

Curious if anyone has any experience with this on a 43 (I know the 63 guys are seeing it)

Cheers,
AFT
Hi , Although I haven’t done it personally have achieved 12 s dead quarter mile with my GLC43 AMG 2017. But ofc it is effective. When launching i sometimes encounter hesitation and jerking trans shifts esp from gears 1 to 2. If my tcu was tuned i could achieve high 11s time!
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