I am experiancing problems with the right side of my gauge cluster. My Gas level and Speedo work fine, but my Tachometer, fuel economy gauge, and my temp gauge are all not working. I looked at the fuse box just to see if anything was blown but all my fuses are working. So I am curious on why it is that it would only be one side. :conf
Yea I took a look where the cluster is and im not seeing it there are these two wires that are connected to each side other than that noting was loose.
i'm scratching my head on this one... there are at least 20 wires connected to the instrument cluster; divided into 2-3 wire socket connectors...
you'll realize diagnostics by description relies solely on how well you can describe what you see, feel , and do... thus, your description of "two wires connected to each side... just doesn't make sense...."
If your talking about replacing the batteries on the SI board then yes you have to pull the cluster...and take the cluster apart...and then solder new batteries onto the SI board.
I chickened out and just bought a new SI board...I'm not sure if that's your problem or not though.
All I know is, when my batteries went dead the only thing that went funky was the "inspection" light. i'd reset it and it would come back on the next day. There were no other problems.
Hope you track this down I have 2 325i's and I must be parking them too close together.. they both have the same problem as yours and I have checked the fuses several times. I have been told that the soldered in battery is for the oil change indicator . Which is another pain in the A...
4 15 Turn signals
emergency flasher
Active Check control
Digital Clock
5 30 Windshield wiper and washer
6 7.5 Stop lights
Cruise control
Active check control
ABS
Interior lights
7 15 Horn
8 30 Rear defogger
9 15 Fuel delivery
Idle speed
10 7.5 Seat belt warning system
Service interval indicator
Tachometer/fuel economy gauge
Instrument gauges and indicators
Brake warning system
Back-up lights
OBC
Starter
Fuel delivery
Idle speed
Active check control
Stop lights and cruise control
11 7.5 Fuel pump
12 7.5 Radio power
Speedometer/instrument indicators
OBC
Multifunction Clock
13 7.5 Left Low Beam
14 7.5 Right Low Beam
15 Not Used
16 15 Heated Seats
17 30 Sunroof
Power Windows
18 30 Aux. cooling fan, high speed
19 7.5 Aux. cooling fan
Interior lights
Power mirrors
20 30 Heater/Air conditioner
Auxiliary Radiator cooling fan
21 7.5 Glovebox light
Flashlight
Ignition Key/Seat Belt warning
Interior Lights
Radio Memory
Trunk Light
Active Check Control
Service Interval Indicator
OBC
Fuel deliveryTachometer/Fuel Economy Gauge
Digital Clock
Multi Function Clock
22 7.5 Active Check Control
Front Parking Lights
Taillights
Front Side Marker Lights
23 7.5 Instrument Panel Lights
Front Parking Lights
Taillights
Rear Side Marker/License Plate Lights
Active Check Control
Rear Defogger
Multi-Function Clock
OBC
24 15 Turn Signals
Emergency Flasher
25 Not Used
26 Not Used
27 30 Interior Lights
Central Locking
OBC
Radio Amplifier
28 30 Lighter
Power Antenna
29 7.5 Left Fog Light
30 7.5 Right Fog Light
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