Hey guys... I have a 2003 cls auto and have a newbie question with the term rev matching. These days I'm seeing cars advertised with rev matching paddle shifters. Is this any different than downshifting in sports mode? Can someone explain the diference if any exists? Thanks... (REALLY regret not getting a 6 speed)

 

good luck with the tranny!... oh and... i dont kno! lol

 

It's when the cars ECU raises the rpm's to match the current rpm as you shift. It makes the shift smoother. It's the same principle as with a human doing it with a manual car, but is computer controlled. On the auto CLS there's no such feature.

 

I do it the human way... manually. It saves synchros, makes the downshifts smoother

 

I do this as well (manual)

Fuzzy answered the question though.

 

It also saves a lot of wear on the clutch. Downshifting wears the hell out of the clutch, even more than the typical upshift. I rev match as much as possible.

 

i rev match on my 01 auto in tippi...... is it bad for the tranny?

 

How? Do you pump the gas pedal quickly between the shift to get the revs up between gears?

 

The auto CLS's (01 at least) have a bit jerky 2-3 shift at low speeds, but I try to rev match then and whenever I can. I just slightly press the accelerator while upshifting in SS mode. It is a bit hard to control exactly though, you have to take into account the gear ratios and pedal sensitivity. Wish I had a manual....

 

so is it bad for the tranny? on autos? and to do it. the time when you down shift in tipp. you tap the gas when it is down shifting to the rpm that i will be in the lower gear.