BMW fault code A508
Antenna tuner
In the antenna tuner, code A508 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
antenna power supply. error in antenna power supply
Module version: Antenna tuner (ANT_60)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
ANT: Voltage supply, antennas
Module version: Antenna tuner (ANT_E65)
In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008
Reading and clearing it
Fault code A508 is a BMW code, stored in the car's antenna tuner, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The antenna tuner is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), 1 Series (E87), 1 Series (E88), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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