Morning Don
Welcome to the Forum
Below is a Graphic from BMW's parts catalogue for your car it shows the position of components and their part numbers.
As I understand it the in a manual there will be switches by the clutch and brake pedal so that if either are operated the Cruise disconnects. It appears that all Cruise Control components are here operate from the throttle
A case of testing each component bridging cables for continuity if a faulty item is found use the Part number for a replacement search and the best price
Hope this helps
Dave
P.S. Z cars have their own section lower down
No.
Description
Supp.
Qty
From
Up To
Part Number
Price
Notes
01
Control unit f cruise control
1
65711387625
$651.79
03
Cruise control actuator
1
07/1996
65718369027
$320.12
04
Bracket f cruise control motor operator
1
41148401744
$5.53
06
Hex nut with plate
M5
3
07/1996
63259128043
$0.72
07
Bowden cable f cruise control
1
65718380083
$25.07
08
Bearing accelator bowden cable
SCHWARZ
1
13541747519
$0.58
For vehicles with
Automatic transmission
S205A=Yes
11
Bridging cable f clutch switch
1
61121385400
$25.88
For vehicles with
Automatic transmission
S205A=No
12
Clutch switch
2 POL.
1
61318360421
$73.75
13
Cruise control switch
1
61318360926
$97.81
14
Button for cruise control switch
(ENGLISH)
1
61311390968
$6.22
14
Button for cruise control switch
(FRANCAISE)
1
61311390969
$4.63
14
Button for cruise control switch
(ITALIANO)
1
61311390970
$5.25
14
Button for cruise control switch
(ESPANOL)
1
61311390971
$5.47
15
Interface, cruise control
1
65718380054
$78.98
Hi: There is a detailed article on facebook dealing with this problem. It requires removing the outer cover of the door sill (water may pour out) and notching it to match the actual drain hole in the sill. Simple solution. Don't understand why BMW hasn't notched the sills at the factory! I have a 2021 430i convertible and don't know if my car has the same problem. I have to lay down on the ground and check. The sill cover notch has to line up with the drain in the sill.
I have a 2000 z3 2.5l with left side drive/US model. the cruise control worked intermittent for a few yrs then quit altogether. check fuse #46/good, then figured I would replace the switches down by the clutch pedal. no one here knows anything about them. one switch is to the left of the pedal and the other is to the right; both have a 3 wire connector. i would like to know what are they called and perhaps a part # and a source other than BMW/astronomical to buy them. thank you
Hi Mike,
Thank you for responding.
Unfortunately you have been the only person to respond to my shout out concerning this problem - Im starting to think this is just me that this has happened to or that anybody else just gets on with it without complaining !
In answer to your queries, I believe the water ingress happens with natural rain/water hose falling on the car and seeping down the rubbers of the top canopy/windows...they are not impervious to water and in most other cars it is directed away from collection. Unfortunatelly the 4 series convertible was made without a means of sufficient drainage and eventually it causes a flooding/failure of the said window winder mechanism.
My advice would be to go to your local BMW garage or specialist BMW service garage and get advice/action to deal with this problem before it gets expensive and have no recompense from BMW !!
Please let me know how you get on and what you are told/advised by the garages involved.
Cheers for now,
Julian
Morning Steven
That sounds fishy to me why would they order a Module without talking to you and showing the evidence? and when it doesn't clear the faults who pays for the part and the work?? Based on your pictures (where were they taken) as I say those don't show a Transfer case fault anywhere the code D36A is a communication fault with the DSC? What they do show a whole load of K-can faults (communication system) that is the place to start, get that fixed and the faults cleared. A couple of hours labour max. Then re=scan and you will see where the real issues are, then you can schedule any work, replacement parts etc.
Google the Register of BMW Specialists and put in your post code it will show you the nearest ones talk to them before just handing over your car and hard earned find out what their costs are never just hand over your car and wallet
Dave
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