Trans fail Safe

[blackx]

Left to go run some errands today. got into 2nd gear. was hit with a hard shift . followed by the transfailsafe light and service engine soon. there was a autozone close so i limped it there and got the codes. p1161 p1159 and p1892 came up. any ideas? truck just hit 109k

[upallnight]

Kinda doubt if Autozone has the right scanner to scan the EGS module in your X. Those are most likely OBD II codes.

[lhordmclain]

You need a more sophisticated diag/scan interface+software, to pin point the issue.

You can google those BMW specific codes for now

[jsoto]

If you turn off the car, and from a cold start, does it behave normal

[blackx]

after cold start the check engine light is still on. i dont get the trans fail safe until after giving it some gas

[lhordmclain]

Please verify @ reoloem.com

I am just assuming this is your transmission -> The A5S-440Z (also known as the 5HP24)


BMW Automatic Transmission – V8 – Slow Reverse – A5S-440Z, 5HP24, 540i, 740i, 840i, X5 | Bavarian Autosport Blog

ZF Updates
http://blog.bavauto.com/wp-content/u...ce-letter1.pdf

EDITS:

I have never owned a BMW with a ZF transmission, most owners recommend Life Guard AT Fluid only and BMW OE filter/gasket kit.

You need to get your vehicle scan/diagnose by GT1 or autologic it will read all BMW specific module - BMW Indy shops or dealership

Good luck!

[blackx]

had the battery charged and tested its good. what remained on the dash was the battery light. a local indie told me the alternator wasnt holding a charge? is this a job i can do?

[upallnight]

Originally Posted by blackx

had the battery charged and tested its good. what remained on the dash was the battery light. a local indie told me the alternator wasnt holding a charge? is this a job i can do?

Have you ever worked on a car? On a BM Trouble U? Do you have a decent set of tools?

[lhordmclain]

I have never changed my alternator yet although I experienced one time glitch ( under charging ).

But with the said incident , it forced me to look at the X alternator specs which is valeo 140amp

I highly recommend that you do the same, check your current alternator specs
And search youtube, BMW forums for DIY

Plus Decide later for rebuild (replace defective parts, keeping the orig unit ) VERSUS rmfd (95% new, core charge if you surrender your unit) VERSUS new unit (no core charge)


Some say stick to BMW parts ( but stay away from units made in Mexico )

Some say aftermarket is a good alternative

[Brandon002]

You have a 2001 with an M62..

Hello water cooled alternator. If you're not handy with tools and familiar with cooling systems and belts... Take it to someone who is. If you are confident in your mechanical ability go for it. It's hard to get to, but once you figure it out it's not a difficult job.