Time for a new transmission in my 2010 335d

Very funny - wife whinning!!

I just picked up a 2011 335d and noticed that when I held the cruise control towards me for 2-4 seconds, that there was a lot of deacceleration. I know that it will save my brakes.

However, I'm wondering if it will do any damage to the tranny. Is the tranny build to take power both ways, or only from the engine?

Thanks, bill

Originally Posted by hittpink

Very funny - wife whinning!!

I just picked up a 2011 335d and noticed that when I held the cruise control towards me for 2-4 seconds, that there was a lot of deacceleration. I know that it will save my brakes.

However, I'm wondering if it will do any damage to the tranny. Is the tranny build to take power both ways, or only from the engine?

Thanks, bill

I have read on here before that the cruise control when you use it's slowing down feature will actually be applying the rear brakes on the car. Not sure if that happens when pulling the stalk towards you or not.

Originally Posted by hittpink

I just picked up a 2011 335d and noticed that when I held the cruise control towards me for 2-4 seconds, that there was a lot of deacceleration. I know that it will save my brakes.

However, I'm wondering if it will do any damage to the tranny. Is the tranny build to take power both ways, or only from the engine?

As mentioned, the brakes are used by the cruise control to slow the car if normal deceleration via the engine won't slow it.

Downshifting the transmission, or even slowing in the current gear, will not harm the transmission. Indeed, if you're on level ground and take your foot off the accelerator, you'll notice the transmission downshift as the car slows.

Very Interesting! Thank You. This may explain why there is less brake pad left on the rear brake pads than the front!

bill

Originally Posted by floydarogers

As mentioned, the brakes are used by the cruise control to slow the car if normal deceleration via the engine won't slow it.

Downshifting the transmission, or even slowing in the current gear, will not harm the transmission. Indeed, if you're on level ground and take your foot off the accelerator, you'll notice the transmission downshift as the car slows.

I always thought that downshifting with AT could harm the transmission. Guess I have a lot to learn. Thanks!

doesnt our cars DOWNSHIFT on their own? I believe so.

Originally Posted by hittpink

Very Interesting! Thank You. This may explain why there is less brake pad left on the rear brake pads than the front!

bill

Rear brakes also get engaged for traction control if I remember correctly.

vry true Snipe I had a terrible experience at the begining when I bought my car DAMN DSC almost made me get into an accident nevertheless i know how the car handles

Originally Posted by Snipe656

$5.4k for a reman or all new transmission?

IIRC all BMW trans are rebuilds in the sense that the housing is NOT new. Read this a few years ago. Internals were new.

Sent from my MB525 using Bimmer App

Originally Posted by cssnms

It is completey different and built to handle the torque and then some. 335d's built up through 8/2009 had the ZF 6HP26Z which was then upgraded to the more stout ZF 6HP28 which has a higehr torque rating. The ZF 6HP26/6HP28 is also found on the E65 7-series, E63/64 6 series, E53 X5, E70 X5 4.8i, and whole slew of other cars by other manufactures including Maserati Quatroportte, Range Rover Sport etc

Here is the manual for the ZF 6HP26Z/6HP28.

http://www.zf.com/na/content/media/u...28_Catalog.pdf

Would I be correct in assuming the zf6hp28 would be the better transmission? I am considering a used 335d.

Originally Posted by cssnms

Sterling is good. VOB and Fairfax have the 2 worst reps in the area. Tischer is outstanding.

Sterling SCREWED my car up big time. When they replaced my head the first time sensors were bent, many things were cracked, things were leaking left and right.

I took the car to BMW of Fairfax and had a diesel trained tech work on my car. He had to take the head apart and correct MANY issues (Internal and external to the engine).

Sterling has lost my business. Knowing many of the tech's I see a lot of fired ones head over to Sterling from Fairfax. The key is finding a tech who has worked on the diesel's. Ask for Ron over at BMW of Fairfax.

My car spent 7 weeks at Sterling. Then another 2 at BMW of Fairfax fixing all of Sterlings fault. The faults were so bad BMW of NA decided to involve themselves. Sterling and BMW NA sent me an apology letter. My previous car (550) head gasket started leaking after sterling replaced it.

It's hard for me to "hate" something. I know hate is a strong word but I do hate BMW of Sterling.

Originally Posted by elester12

It's hard for me to "hate" something. I know hate is a strong word but I do hate BMW of Sterling.

At least BMW NA did not try to make you pay for the repairs of the repair, meaning the second dealership charges to fix what the first dealership did wrong.

When BMW of North Houston completely botched replacing a sensor, under the factory warranty, on my car and Advantage BMW of Midtown fixed it the response from BMW NA was that I had to pay for the repair of the repair. BMW NA though is the entity that told me to take it to a second dealer when I did not trust the response from BMW of North Houston when they returned my car to me with an SES light on which was the very reason I brought the car to them and they had for around a month and said was fixed.

I can say with certainty that I "hate" BMW of North Houston and I am not overly happy with BMW NA either since they tried to stick me with the bill. Guess I was at least lucky in that Advantage found with North Houston to make North Houston pay the bill, this created a few more days of delays and car sat at the dealer during that.