Hi all,

I took my car in for service today and was curious about the DME and overrevs. My car is an 07 and I never checked a DME before I bought it (I didn't know about this website otherwise I would have). My car has been trouble free but, out of curiosity, I asked my service advisor to print up a report for me. He told me (after talking to the tech) that there are NO overrevs on a tiptronic because the computer won't allow you to do that. i.e, it will shift gears even in manual if you get close to dangerous overrevs. Sounds like bs to me but was curious what the community thought.

Thanks

 

Did he tell you no over revs on a tiptronic because he checked your DME, or because he thinks that it is mechanically impossible and won't be recorded?

If it is the latter, he is wrong - as there are many tiptronics that have registered over revs.

 

Level 1 is fairly inconsequential.

I am now 100% confident that there can be no ovverrev in a stock tiptronic/pdk car. It is a tuned car or a computer glitch that makes this happen. This is a copy from owners manual page 173:

M- Manual selection mode

Depending on driving speed and engine speed,
you can shift up or down at any time.
Gear changes which would exceed the upper or
lower engine-speed limit will not be executed by
the controller.
You can change down two gears by quickly pressing
the rocker switches twice.
If the engine-speed limit is reached, an automatic
upward shift is performed or, just before idling
speed is reached, a downward shift is performed.

 

No Bob, that's the thing, he didn't check the DME but told me that bascially it's impossible to get signifcant/important over revs because of the ECU.

 

Thanks, if that's the case then maybe tiptronic engines will last longer than 6 speeds?

 

Maybe not longer but they are harder to kill if you will. Here is why i went with a tip. A: I drive in traffic B: Nowdays a computer does a better job than I can C: I have read quite a few pro drivers that say the tip is better for the track. I know how to drive a standard and dont need to prove it. The Tip can get there faster than a manual because the computer is just better than the human and I keep two hands on the wheel.
Another thing is the tip is faster, yet its porsche legal. My old BMW M's had level 6 and if you used it more than 5-6 times BMW wasnt going to help you. Porsche gets better numbers than a manual and it wont break the car. I dont race so thats my reasoning to get it.

Right the enthusiast supposed purest has to have a 6sp, hence a forum for it. For years Formula cars used SMG style gearboxes. NOT PDK!! SMG. OR a manual tranny with a clutch controlled and shifted by a computer.
My last BMW M I missed my SMG, even though it sucked on the early BMW's. Its like once you go the speed of sound you realize the coolest thing about it is that some others can't

 

On tip if you are in manual and with sport mode "on" you have to shift between gears or you will overreve,- my car is tuned tho

 

But the owners manual specifically says it will not...

 

BS... my car is not tuned and I have a range 2 over rev, I leanerd the hard way that, one cannot do a burn out in manual mode without looking at the tach

 

Just try it ."Sport" mode "on", transmission in manual -first gear "in" and see where you'll get without shifting in to 2nd. gear. -simple

 

How do you check this "over revs " in a manual. I do have durametric ??

 

I've seen stage 2 overrevs on Tiptronic cars that were for sale. Not sure if it happened through tuning, though.

 

The owner's manual is wrong.

I have scanned enough tiptronic cars that are completely stock to know that range 1 and 2 are recorded not too infrequently.

https://www.6speedonline.com/forums/...-counters.html

https://www.6speedonline.com/forums/...tive-post.html

Even a stock tiptronic ECU and stock DME can have range 2 over revs.

 

Well agreed if you sit there banging off the limiter! Its like with a money shift. If you feed the car enough gas its going to produce the power. Its not going to be fast enough to catch it. Point is in a tip you are not going to have extended period of time at the level 2 but could record some.

Trying to be diplomatic here but once you hit the limiter let off. IF you stand on it like at a dyno or something and let it sit there and bang on it yeah you are gonna see the tach swings get bigger. Thats just how things work. Having been to many many many dyno days in my old BMWs there is always the guy that sits on the dyno thinking he will get a better number if he stays on it. Or the meet where you hear then Bah bah bah bah because someone is doing a burnout and stays on it.
Thing about a tip is the chances of engine damaging overrevs is a slim possibility but i am sure someone will figure out a way to break it.

 

I ve seen many tip cars stock with range 2 overrevs...if you floor it with 1st an manual mode the rev limit will hit hard and inertia will allow the engine to rev at range 2 (7000-7200)...however it is almost impossible with a stock tip car to record range 3,4,5 and 6 overrevs...so no needto worry about motor health...