fLASHING RED LIGHT ON HOOD SWITCHES
- Thread starter Robert63
- Start date
noiseboy72
Member
Pump motor or connections to it. If it's been relocated to the boot, check the connections are sound. If it's still tucked under the roof, pump might well have seized.
noiseboy72
Member
But also check the parcel shelf is down. Turn the 2 knobs in the boot so that the shelf is in the lower position.
HI Many thanks I have checked the parcel shelf switch and I am certain it is not that, where about would it be under the roof, the flashing red light comes on as soon as I put the key in the ignition ??? is there any way of reseting this light I am coming to my wits end with this car !!!!!!!
The motor lives in a dirty dank well in front of the passenger rear wheel, if moved, it could be behind a panel in the boot. Also ceck the micro switch for the parcel shelf, that has to contact or the roof won't work. The switch can fall apart, so worth checking.
Hi many thanks for your reply. Firstly I have checked the micro switch and it is good. I have even shorted it out and the flashing red light still persists. Would a code reader tell me what the fault is just a thought ???. Does the rear wheel need to be removed to get at this motor ???? I am loosing the will to live with this car :x :x :x :x
I think your right here. Normally when the main roof motor fails the windows still drop a short way and the smaller front motor that operates the locking mechanism at the windscreen still unlocks. What your describing sounds more like a short/open circuit or a failure of the front motor etc.Robert63 said:
I had a similar intermittent fault exactly like this when I had an issue with some of the wires starting to perish in the roofs loom. Basically they were starting to break right where they bend when the roof retracts. I replaced all the wires right through out the length of the roof with new/better quality stuff and touch wood I haven't really had a re-occurrence in two years now.
In my case when it occurred I got a code in INPA for an open circuit on the front motor/latches. I think what was probably happening was that the roof module was detecting the open circuit as it started the cycle and then shutting off the roof as well as flashing the red light to indicate an issue.
If the windows are not dropping and the roof is not unlatching, you may want to double check the boot microswitch and the relevant fuses. No window or latch action suggests the sequence is not starting at all, so not a motor issue based on this info,
Perhaps get someone to press the roof down button while you manually depress the m/s
Perhaps get someone to press the roof down button while you manually depress the m/s
Hi many thanks for your reply much appreciated. I am as certain as I can be that it is not the micro switch in the boot . I have tested it with a multi meter and it switches I have also, to make sure shorted it out and still the red light persists. May I ask as to where is the wiring in the hood and is it easy to get at. Many thanks.
Hi many thanks for all the advice I really appreciate it. got up this morning jumped in the car and guess what the red light has stopped flashing 
I thought "yes" lets go for a spin with the top down, by the time I called the Missus and decided to get going . Guess what the dreaded light was back again :x :x :x. So no spin in this beautiful weather. The battery idea is a good shout actually, I did consider it today but was unsure if the radio is coded or not, so for fear of making a bad situation worse . I decided against it. Regarding inspecting the wiring I am unable drop the hood because of this blasted light .
I thought "yes" lets go for a spin with the top down, by the time I called the Missus and decided to get going . Guess what the dreaded light was back again :x :x :x. So no spin in this beautiful weather. The battery idea is a good shout actually, I did consider it today but was unsure if the radio is coded or not, so for fear of making a bad situation worse . I decided against it. Regarding inspecting the wiring I am unable drop the hood because of this blasted light .Robert63 said:
That’s the code I got and this is the fix, as Mack has said, it’s a broken wire/wires in the loom in the roof as it goes down the passenger side.
This is from one of my posts a while ago of how you get to the wiring loom.
I have the same problem as you, No window drop and No unlatch.
I believe that if the roof motor has gone the windows should still lower and the roof should unlatch.
I'm going to try this from this thread when the weather is better http://www.z4-forum.com/forum/viewtopic ... ch#p913746
Hopefully an easy fix.
If you try it before me let me know the outcome
This is the fix (hopefully)
After some searching for info I finally managed to track down the 2 hidden side screws to get the 'Windshield Frame Cover' off to inspect the locking mechanism.
To take it off you need a T20 screwdriver or a T20 socket,
1- First you need to lower the roof just past half way, NOTE if the roofs not down enough you won't see the side screws, I had the engine running as the roof will creep down otherwise.
2- Then remove the cover that hides the part for manually releasing the roof, where the Allen Key goes. Then remove the screw at the back, it will be obvious which one it is.
3- Then remove the 4 little screws at the front of the panel.
4- Then remove the side screws (one on each side) it won't come off without breaking unless you Remove them as I very nearly found out.
So that's a total of 7 screws to remove and with a bit of wiggling she's off.