Try removing a battery cable for 15 minutes (have your radio code handy for
reconnection). It resets the transmission memory to factory defaults.
Always gives the car new punch. The Driver Adaptive feature tends to bog
down from normal daily driving, then gives sporadic intermittent bursts of
performance or an overall dull response.
It could be a MAS unit working better at a higher air temperature (they
calculate engine needs based on a heated sensor temperature). Maybe a sign
it needs a shot of electronics cleaner or replacement if it works better in
a warmer air environment than cool?
In general, colder air is denser air, which is why supercharger/kompressor
engines use intercoolers. In theory it should have more power at cooler air
Also, the S/W switch (Standard or Winter) on the shift console controls
Standard first-gear startout, or Winter second-gear startout (with more
conservative shift points up the scale). You're consistently using S for
normal driving, right?
Most of these things are well known to anyone excited enough to buy a C43,
but a recent sales experience had me explaining the S/W switch to the
Mercedes-Benz salesman who was demonstrating my new car to me (SLK32).
Hope this helps!
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