The E85 Z4 and E46 3-series convertible have the FZV antenna amplifier (remote locking amplifier) built into the rearview mirror.
Circled in green.
This piece can't be bought on its own. If its faulty, your best bet is a used E46 convertible mirror, replacement mirror of the original, or sending the module to a specialist for repair, such as Scott at bmwgm5.com (no affiliation).
Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
- vbelsky
- Newbie
- Posts: 14
- Joined: Wed Jan 03, 2018 2:00 am
- Magicarcher
- Member
- Posts: 543
- Joined: Fri Jun 17, 2016 9:12 pm
- Location: Warwickshire
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
Agree with your findings. RF key fobs not working are mostly down to dead batteries, but in my case even after replacing batteries and pairing it didn't work. After weeks of frustration I realised it was pairing OK because I was sitting next to the mirror to do it but as soon as I moved outside the car it stopped working. Decided to test it from outside the car with the RF fob up against the front screen by the mirror and it worked. The issue was the RF receiver in the mirror had gone faulty and it's range had been reduced. Didn't know you could just buy receiver, so bought a SH mirror from ebay. fitted in 15 minutes and keyfob worked again
Z4 3.0L 2005. Titan Silver. Audio Upgrade Second Stereo Pioneer X8700DAB, Sony Xplode 4 x 70W Amp, 6.5" Reckhorn Subs in rear cubby, Focal AS165-3 in fronts.
- ph001
- Lifer
- Posts: 3870
- Joined: Mon Oct 31, 2016 5:53 pm
- Location: N. Yorkshire.
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
Does a new mirror / pcb needed to be coded to the car or the key in any way?
- Silverzedtom
- Senior Member
- Posts: 1478
- Joined: Sun Jan 15, 2017 8:19 pm
- Location: East Sussex
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
Hope you don’t mind OP. But I’ll just leave this here in case anyone needs a mirror.
viewtopic.php?f=7&t=101755&hilit=Mirror
viewtopic.php?f=7&t=101755&hilit=Mirror
E85 2.5si
F55 Cooper S
F55 Cooper S
- buzyg
- Legend
- Posts: 26531
- Joined: Fri May 20, 2011 6:11 pm
- Location: Cornwall
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
Another little nugget of info, cheers op.
- Magicarcher
- Member
- Posts: 543
- Joined: Fri Jun 17, 2016 9:12 pm
- Location: Warwickshire
Your remote key fob not working after replacing it or the battery? Here's a possible reason why...
No. I fitted a new interior mirror of a 2007 into my 2005 no need to code (and it made my RF work). BMW changed the interior mirror part number (supplier change I think), the 2007 has the latest part fitted. i read on another forum that the newer models were less prone to fluid leakage.
Z4 3.0L 2005. Titan Silver. Audio Upgrade Second Stereo Pioneer X8700DAB, Sony Xplode 4 x 70W Amp, 6.5" Reckhorn Subs in rear cubby, Focal AS165-3 in fronts.