Transmission safe mode

[pquast1]

I was on my to south Florida today, pulled off at a rest stop when I went to get on the turnpike and accelerated I had a lost of power. It drove fine once I was back to highway speed until I going over an overpass where it hesitated. Made it to Fort Lauderdale I accelerated and it lost power again and yet it again it went away. Made a U-turn and had to hard accelerate this time the trans fail safe and SES light came on. I am able to drive it but shifting from 1st to 2nd is a hard shift, downshift from 4th into 3rd hard clunk. I am now shifting the ST mode to try and control up and downshifting.



My question is have anybody else had this problem? Could this be a speed sensor not talking to the module, I plan on getting the codes read once I get back to Orlando.

Drove it back, on the highway it ran fine. When I got off to get gas it downshifted hard, leaving I used manual mode and other then going into 4th it shifted smooth. At the dealership now waiting on what they found.





2005 X5 3.0 AT/ST

115K


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[lhordmclain]

Please give us a readers digest on the previous maintenance & repairs to your vehicle before this incident happened

Example:

1. (a) Have you serviced the AT Fluid (within approved specs) plus OE or OEM Filter and Gasket
(b) Any recent EGS level software update?

2. Have you serviced the transfer case fluid (power divider oil) and reset the VTG - oil wear counter?

3. Alternator and Battery serviced?

4. Any sign of leaking ATF?

[pquast1]

I will do a better job in the future with better details.

It was the MAF, the tab that holds the connector in place was missing allowing it to back out. That is what caused all the problems. The dealership here fixed it and only charged me the Diag fee.


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[lhordmclain]

I have to say that mechanic in that dealership is honest.

Good , simple and pocket friendly experience

[upallnight]

Perhaps you would like to mention the name of that HONEST Dealer, so that people will know who that DEALER is.

[pquast1]

Fields BMW south, Orlando


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[upallnight]

There's a Fields BMW Dealer in my neck of the wood. I go to an Indy that was a Master Mechanic at Fields before opening up his own shop.

[lhordmclain]

By dempster? Indy shop