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E34 (1989 - 1995)

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Old 08-24-2012, 03:39 PM
Hunter8511 Hunter8511 is offline
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Location: Lodi, California
Join Date: Aug 2012
Posts: 19
Mein Auto: 1990 525i (E34)
What should I replace on my engine?

Hey everyone, as some have read, i have a 1990 525i. Ordering my new taillights next week, and now onto the performance tweaking. Im not looking to make it into a racer, just to keep her running for another 10 years.

So i need a new timing belt, she has 353,000 miles on her and i don't know the last time it was changed. Figured better safe then new motor. But I've herd i should replace my water pump with that as well. Yay or nay? Anything els i should do while thats in the shop?

Im also gunna go get a tune up and inspection done. What type of spark plugs should i get? Brand and type thats best for her maybe?

Im going to replace all the hoses since i bet it has been a while, most have cracks and some just look about to break completely.

The battery I'm having a debate about. Ive been told normal store bought battery's are ok. But then I've been told go to the dealer and buy a BMW battery? What should i buy? Reasons why?

Anything els you guys recommend i will gladly appreciate. Thank you guys for all your time. It helps keeping my new to me baby goin.
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Old 08-24-2012, 03:58 PM
haolibird haolibird is offline
Habitual User
Location: san diego
Join Date: Dec 2008
Posts: 623
Mein Auto: E39 540i, E39 M5, E34 535

Open a beer, and search the forum.
Plan on several hours, as the posts can be very detailed, and most of the links are incredible.

As this forum is rather mature, all of your questions are in here.
All you have to do is look.

To get the most attention, post pics.
Everybody here loves these cars, and we would like to see yours.

T Hb
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Old 08-24-2012, 04:08 PM
Costa's Avatar
Costa Costa is offline
Officially Welcomed to the 'Fest
Location: Vancouver, Canada
Join Date: May 2011
Posts: 887
Mein Auto: Supercharged E34 540i6
353k miles?!? Get a new engine, a lot more cost effective.
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