weird shifting
04-18-2016, 08:43 AM
#1
weird shifting
09 gl320 when going uphill the transmission shifts sooner than normal and when going down a hill it holds the gears longer
seems to me that should be the opposite, holding gears longer going uphill for climbing power and upshifting soon going downhill
i owned a subaru and the angle sensor (not sure of correct terminology) was installed backwards causing shifting and handling problems, they had a recall
does anyone know where the inclinometer or whatever its called is installed in our x164 mercedes is?
i wonder if someone messed with it and installed it backward
i tried reseting adaptions with star tool, fluid and filter change also but still not happy with the inconsistent shifting behavior
Steve
seems to me that should be the opposite, holding gears longer going uphill for climbing power and upshifting soon going downhill
i owned a subaru and the angle sensor (not sure of correct terminology) was installed backwards causing shifting and handling problems, they had a recall
does anyone know where the inclinometer or whatever its called is installed in our x164 mercedes is?
i wonder if someone messed with it and installed it backward
i tried reseting adaptions with star tool, fluid and filter change also but still not happy with the inconsistent shifting behavior
Steve
04-18-2016, 01:08 PM
#2
The turbo diesel has a lot of torque. Tcu shifting patterns use that to maximize fuel economy. What is considered lugging a gasoline engine is considered mo for a Diesel engine. Thus going uphill at 1200-1500 rpms is common.
On the downhill part- tranny is downshifted automatically to maintain better control of vehicle. This is also normal. Especially if you are touching the brake pedal while going downhill.
On the downhill part- tranny is downshifted automatically to maintain better control of vehicle. This is also normal. Especially if you are touching the brake pedal while going downhill.
