Has anyone ever changed an alternator and belt tension wheel in a Z3?

10

Asked by Jul 25, 2010 at 05:39 AM about the BMW Z3

Question type: Maintenance & Repair

I tell you...That alternator and belt tension wheel in my Z3 looks impossible to swap out.  It looks like I need a special tool!  Anyone here ever done it?

2 Answers

175

It's pain in the ass. You need to remove most of your obstacles from the bottom. If you have access to a lift then use a lift, it's almost impossible in the driveway.

1 out of 1 people think this is helpful.
1,765

yes several times.you need a t-50 torx socket or a 40 dont remember he exact size.pull out the idler pulley should have a cover on it.pop it off then there is a 16mm i believe.disconnect the connector on the back of the alternator and positive cable .i dont disconnect the battery but you.take off the belt.take off the alternator bolts and may need to pry it off.should be 2 on the bottom and the one for the idler pulley goes throuh it.the tensioner might be mechanical or hydraulic.either or not hard to replace.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search BMW Z3 Questions

BMW Z3 Experts

#1 Tom Demyan
Tom Demyan
Reputation 300
#2 Kelly Mayo
Kelly Mayo
Reputation 240
#3 bmwmastertech4hire
bmwmastertech4hire
Reputation 190
View All

Related Models For Sale

Used BMW Z4
34 Great Deals out of 1,199 listings starting at $4,988
Used BMW Z3 M
86 listings starting at $7,500
Used BMW 3 Series
938 Great Deals out of 33,246 listings starting at $1,000
Used Mazda MX-5 Miata
41 Great Deals out of 4,392 listings starting at $1,995
Used Porsche Boxster
41 Great Deals out of 1,275 listings starting at $2,500
Used Chevrolet Corvette
95 Great Deals out of 20,146 listings starting at $3,495
Used Ford Mustang
362 Great Deals out of 46,795 listings starting at $1,999
Used BMW M3
36 Great Deals out of 1,709 listings starting at $4,544
Used Mercedes-Benz SLK-Class
46 Great Deals out of 1,279 listings starting at $3,250
Used Audi TT
32 Great Deals out of 1,050 listings starting at $2,995
Used BMW Z4 M
92 listings starting at $13,495
Used Nissan 350Z
52 Great Deals out of 1,190 listings starting at $3,995
Used BMW 5 Series
481 Great Deals out of 15,047 listings starting at $2,499
Used Chevrolet Camaro
154 Great Deals out of 32,696 listings starting at $1,995
Used Honda S2000
13 Great Deals out of 298 listings starting at $7,995