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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 01-07-2015, 04:16 AM   #1
Registered User
Join Date: Jan 2015
Location: Sydney Australia
Posts: 2
My Ride: 2000 model 323i
2000 323i power loss when hot/starts off in 2nd gear

Hello from Australia! Have recently bought a 2000 model e46 323i. My wife has never asked me for a thing our entire married life and she desperately wanted to own our friends 323i which they have owned since new. They bought a new M3 and the dealer offered them peanuts for the e46 as a trade in, so we owned it for $3,000 with 190,000kms and it is immaculate!

I am a mechanic by trade and we have always owned GM products (except for a 1979 323i 2 door with a BBS kit) and I still work on our cars although I am a few years out of the trade but still in the automotive business.

My wife's car is absolutely fine started up cold and does everything perfectly. If you turn the vehicle off once at operating temperature and restart it, it loses around 50% of its power and starts off in 2nd gear all the time. You can manually shift it back to first but the power loss is still there. I replaced the fuel pump and fuel filter with no change.There are no lights on the dash. Thinking of buying software and ALDL cable off ebay to connect my lap top to assist in diagnosis (although no lights on dash). If you keep driving vehicle from a cold start and don't turn it off, it works 100% without a fault.

Any ideas????
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Last edited by T.R; 01-07-2015 at 04:22 AM.
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Old 01-13-2015, 10:08 AM   #2
H.A.L. 9000
Registered User
Join Date: Dec 2014
Location: Florence
Posts: 59
My Ride: 323i
Have you gotten the coolant temp from the gauge or from the cluster? From the cluster, press and hold the left button until it blinks "test" then press it repeadedly until you see 19. Then immediately after it says "l_off" then cycle to option 7 for coolant temp. That will give you realtime temperatures.
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