Mechanics

ENGINE CODES

2001 BMW 330ci • 6 cylinder 2WD • 147 miles

2001 Bmw 330ci 148k.2 check engine codes P0741-Torque Convertor CKT Performance or stuck off.

2nd P0128 Coolant Temp Below regulating temp. This code has not yet come up but its there. How bad is the first code
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Jckman40car
March 3, 2011.



It could be something as minor as a low fluid condition or even low voltage from the battery causing the issue. It could also be a failure in the transmission.

The safest bet is to take it immediately to a reputable facility to have it properly checked out. The longer you drive it in this condition, the more likely you are to cause serious issues. If oine shop says you need a new torque converter or a rebuild, make certain to get a second opinion before having it completed, maybe even try a few BMW specialists.

Cup1981
Mar 3, 2011.
Also I was wondering if I could put Mobil 1 syn 75/90 in the rearend. Instead of the redline 75/90

Tiny
Jckman40car
Mar 4, 2011.
Your rear end will be just fine with Mobil 1 Syn 75/90. Its properties are nearly identical to that of the Redline oil.

Cup1981
Mar 4, 2011.
So can I use mobil 1 syn 75/90 in my transmission also? If so how much does it take?

Tiny
Jckman40car
Mar 4, 2011.
No you cannot use that fluid in the transmission. The extraction of generic OBDII faults does not always show the fault, the OBDII scans can be misleading. I recommend having the scan performed with the proprietary BMW scanning equipment to be sure of the diagnostic.

Dr. Hagerty
Mar 4, 2011.
What kind of Tranny fluid can I use?

Can I use Redline D4 ATF or Amsoil ATF
Can I put the Additives in it also

Tiny
Jckman40car
Mar 5, 2011.
Use the factory fluid, and be prepared to pay, its expensive.
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Dr. Hagerty
Mar 6, 2011.

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