Are the motors in the flag mirrors interchangeable between an 87 S4 and an 89?

Thanks
joe

 

If they both have memory yes. You may be able to use none memory with memory but lose the memory function and vice versa.

 

The 89 will have the ability to mount the outside air temp sender

 

Thanks Gentlemen.

 

The motors are independent of the temperature sensor in '89+ cars.

So the '89 should have this sensor already in the mirror body.

Here's the temp sensor mounted in a '91:

 

The motor went south in my 89, but I've got a spare left over from my 87. I was hoping I could just swap'em out. Never used the memory in ether cars, nobody drives them but me.

 

I might have one from a 90 or 91 that you could have for shipping, if the 87 doesn't work. Let me know and I will check what I have.

 

I can't actually find a separate part number for just the flag mirror motors, doesn't seem to exist in PET, at least for 928s. The whole motor and mounting frame assembly is 928 624 067 00 for memory mirrors and 944 731 027 01 for non-memory mirrors.



The motors themselves are made by IKU in Holland. Next time I'm at Mark's I'll try to find a non-memory mirror and see whether the part numbers on the motor istelf is different.

 

"Outside Air Temp Sender" - you must be driving a new 928! … probably got air bags too!

Hey Pole Cat - My son Spencer, now a Marine, has a job waiting for him in the oil field business after MOS school.

 

Rob, I thought the memory was in the seat circuit board, like you I couldn't find a different number for the motors in the mirrors. That's why I asked the forum.

Andy, That's good on both counts! Spencer should do well as a Marine, he'll be one for the rest of his life. Semper Fi!

 

hi Joe.........got a couple of flag mirror parts in a box of my 88 S4.........yours if you want 'em for the stamp

 

Thanks Malcolm. I have a drivers side motor that works, gonna try that first. If it doesn't work I'll send ya a PM.

Thanks again! Say hi to Daphne too! Like me ya married up!
joe

 

Joe, I have the internals for a Flag mirror if you need it for replacement or testing. I'm local.

 

WOW, thanks for the offer Glenn. Let me try my spare motor I bought as a spare for my 87 first.

BTW, I've got a lift that you can use if you need too. Lot easier being able to stand up under the car, than laying on your back.

 

FYI Pre-S4 flag mirrors are very different internally to S4 flag mirrors.

The memory is in the mirror memory controller (above hood release), the keypad is driven by the seat memory controller (under the seat), but the memory mirror motors themselves must have potentiometers built in for X & Y directions to feedback the actual mirror position back to the controller. Apart from these - memory & non-memory mirror motors are the same.

Without the potentiometers you will likely get strange behaviour in a memory equipped car if you ever recall a memory seat position - the mirrors will likely drive all the way to one extreme position in X & Y.

Alan