After rebuilding tons of instrument clusters we found out that leaking batteries on the SI board (Service Interval Board) can cause problems with the speedometer as well.
The acid will find its way through the board into the PCB (Printer Circuit Board) of the speedometer causing it to malfunction even after replacing the SI Board.
Boards are cleaned, reflowed and all capacitors renewed.
Works with both IC chips, ITT UAF-0115 & UAF-2115.
All boards have a 24h test cycle and a full year warranty!
When ordering a board you must specify what speedometer you have so we can send you the correct PCB.
We have them in stock for the following units:
KM/h MPH Models
220 140 518, 518i, 520i, 524d, 524td, 525e, 528e
240 150 525i, 528i, 533i
260 160 528i, 535i, M535i
280 180 M5
300 190 Alpina, Hartge
Does not work with Early (PRE 1981) E23’s and E24’s but we have PCB’s for those as well, feel free to ask