BMWGM5.COM Frequently Asked Questions
I keep getting the same questions over and over again even though they are answered on my web site in several places. Maybe putting the answer to frequently asked questions in one place will help.
#1 Are you still doing GM5 repairs?
YES, Yes, yes, I am still doing GM5 repairs. I have enough
relays to last through the end of 2010. One way to get rid of them is to use
them doing repairs. Repair costs and turn around times can be found on this
web page GM5_Repair_Service
#2 Will my car work without the general module?
Yes, the car will still run and drive fine without the
general module. You will loose a few things like power windows, power door locks,
remote keyless entry, remote trunk release, trunk release switch (the key will
still work in the keyhole) interior lights, windshield wipers, windshield washers
and alarm. Other than that you probably won't even notice the module is missing.
#3 How do I remove the GM5 module?
I have created a GM5 removal instruction web page which
applies to the 3-series, GM5_Removal. Or you
can view a removal procedure which I found linked in an E46Fanatics forum post
bmw-gm5-removal.pdf. Sorry I do not have
removal procedure for the X3, Z4 or Z8.
#4 I want to send my GM5 in for repair, but, I can't
find your address.
I did not post my address because I don't want people
just sending in their modules. For one, I want to first determining if the GM5
is truely at fault or if it's something else. How pissed would you be if I charged
you to replace the relays only to find that the exact same problem still exists.
Two, I don't want modules coming in while I'm on vacation or on a business trip.
There is no one else in the office qualified to work on these modules and more
than half the office have electrical engineering degrees. Without me there,
your module would just sit there. The procedure for obtaining my GM5 repair
service is to contact me via email at scott@bmwgm5.com and tell me your cars
model year, # doors, body style and a description of your problem including
which door(s) fail and if it's unlocking, locking or both? Is it worse when
the cars interior is hot or cold? Does the fuel filler door fail to unlock?
I really don't care if the trunk release works so you can skip that one. After
I determine that it is or could be the GM5 door lock relays at fault
I will send you my shipping address.
#5 How much is your repair service?
I have a web page dedicated to this. It covers both mail
in service as well as drive up service and international service. GM5_Repair_Service.
#6 How can I pay?
I accept PayPal, my account is scott@bmwgm5.com or you
can include a cash, money order or cashiers check with the module. No personal
checks please.
#7 What is your turn around time for repairs?
Turn around times depend how much you pay.
Priority Service: I will do the required relay service within 24 hours and ship
it back via Priority mail, which usually takes 2-3 days within the US.
Express Service: I will do the required relay service the same day and
ship it back via Express mail which usually is next day within the US, but,
some areas it's 2nd day.
#8 Does my GM5 need to be reprogrammed
after your service?
No it doesn't. That's another way my service can save
you another $100 since a New module will require programming to get it to work
in your car at the cost of 1 hour labor. When I replace just the relays there
is no reprogramming necessary. No need to pay a visit to your dealer. When you
get the module back from me all you need to do is plug it in and you're done.
#9 Are you an auto mechanic? Can I ask you about other
problems with my car?
I am not an auto mechanic. I do not work on cars. I am
an electrical engineer who designs solid state memory systems. I got into the
whole GM5 door lock problem by accident, my car is an 1999 323i, well you get
the picture. You can ask me about other problems with your car, but, you are
most likely going to get, "I don't know", as my answer or, "Hmmm,
that's not good, you should take it in to somebody to have it looked at."
Don't get me wrong. I don't mind hearing your problems. Sometimes I can help,
but, other times I'm as clueless as you.
#10 Where is my GM5 module located?
In the E46, 3-series it is located behind the glove box
regardless of body style <Picture>.
In the Z8 is it located next to the CD Changer <Picture>.
On the Z4 is it located behind the glove box, but, exact position varies slightly
depending on if the car is left hand drive or right hand driver <LHD
Picture> <RHD Picture>.
On the E83, X3 it is located behind the glove box <Picture>.
#11 The module sounds like there
is something loose inside when I shake it. Is this a sign of a bad relay?
No, the rattle you hear is normal and not a
sign of a bad relays.
BMW General Module III (GM3) Page
BMW General Module IV (GM4) Page