Re: How do you reconnect the temperature control after...
Had the same problem. if you look at the end of it all and where it goes it only goes on one way and no other way is possible. there is no way to make more room just patience small fingers and a lot of cussing.
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put key in ignition turn to number 2 and press the fob buttons open close etc. see if that reset system. also if you charged the batter while on the vehicle you can only charge them with a tried and tested charger from mercedes as you can damage the engine management unit and the voltage control module fitted to the vehicle. failing that you will need to remove the negative lead on battery and leave off for an hour or so. and reconnect, the alarm will still go off until its internal battery goes flat ruf 30min or so. when reconnecting battery make sure the doors are all unlocked and boot is unlocked, you also will need the code for the radio and other units that can be in the vehicle from manufacture. if this does not work then you may need another unit to replace before the engine will start again as it has been damaged. when battery connected sit in the vehicle and turn ignition to number 2 and press fob to lock unlock doors then try to start engine if all goes well the engine and alam will not be a problem anymore
Sounds as if you may have failed to reconnect some wiring. If not, security system may need to be re-set. I don't know how to do that on your car, sorry. Are you absolutely sure you have a good battery connection? Clean all cables to battery and retry.
It an electronic security code for the radio that avoids radios being stolen from cars because then they will not work once power to them is disconnected due to either their removal, disconnection of the car battery or a flat car battery.
Once the radio has lost it's power source it cannot be operated until power is reconnected and the code is punched into the radio using the radio controls. The code for each radio is different and is supplied with the car when new. If you do not have the code you need to contact the service department of the new car dealer that sells that brand of car who will likely charge you a fee to look it up for you if the records are still held.
1. Undo the panels to the left and right of the steering column.
2. Remove the panel that encloses the instrument cluster.
3. Replace the light bulb located on the back of the panel (removed in step 2).
4. Reinstall the instrument panel (removed in step 2).
5. Reinstall the panels on the left and right of the steering column.
Here are the details:
FIRST - Disconnect the battery. Be careful to locate the radio
security code and radio station memory locations before you disconnect
though. I chose to disconnect the ground (black wire) from the battery.
Be careful to put the cable away from the battery terminal.
Step 1: Undo the panels to the left and right of the steering column.
a. Put on your parking break. You'll want to prevent the car from moving because you will soon put the car in gear.
b. Put your keys and turn to the starting position (but don't try to start the car). This allows the gear lever to move.
c. Move the gear shift to lowest gear. This puts the gear shift lever to
a place nearly out of the way of the panel so that you can pry it out.
d. Using bare hands, pull smartly on the plastic edge closest to the
steering wheel. Pry out the panels by hand as they are both held by
tabs. This is hardest to do the first time. Keep in mind that these are
pieces of plastic, so be careful. Once panels are out, let them dangle.
You only need access to the instrument panel screws.
Step 2: Remove the panel that encloses the instrument cluster.
e. Remove the 8 screws that keep the instrument cluster panel in place.
o Two on left of steering wheel
o Two on top of instrument cluster (upside-down)
o Four on right side of steering wheel
f. Wiggle/pry out the instrument cluster panel. Be careful as the center
is held in stronger than the sides. In addition to screws, there are
different tabs that assist in holding this in place.
g. Before removing the instrument cluster panel, disconnect the clock
and emergency light electrical connectors. While the clock connector
disconnects easily, the emergency light has a locking tab that needs to
be pushed in to disconnect. I used a small screwdriver to push in the
tab to get the connector to disconnect.
h. Remove the instrument panel. Turn it over and locate the clock's protective cover.
i. Open the clock's protective cover by loosening the tabs. Be very gentle to these tabs.
j. Once the cover is removed locate the light bulb.
Step 3: Replace the light bulb located on the back of the panel (removed in step 2).
k. Unscrew the light bulb and remove.
l. Install the new light bulb. Check the light bulb before you install
it. Be careful when rotating the new light bulb. in place. I've read in
other posts that the light bulbs are VERY sensitive. I used a small
screwdriver with plastic on the head to screw the light bulb. in.
m. Replace the clock's protective cover.
o. Reconnect the clock and emergency light's electrical connectors.
Step 4. Reinstall the instrument panel (removed in step 2).
p. Fit the instrument cluster panel back into it's original position. Be
careful with the fan vents. I suggest aligning the fan vents first,
then fitting the panel.
q. Screw in the 8 screws that keep the instrument cluster panel in place.
Step 5. Reinstall the panels on the left and right of the steering column.
r. Push both panels back into place.
s. Move the gear shift lever back to park.
t. Remove the car key.
u. [Optional - disengage the parking brake]
LAST - Reconnect the battery.
TEST - Reinsert your keys and turn them to the starting position (but don't start the car). The clock light should light up.
Note: Because the power has been reset, you will need to enter the factory stereo code and reset your radio stations.
The battery is rated at 90aH, and is fitted into the right hand side of the trunk, under the storage recepticle. Once the battery has been disconnected and reconnected, by your BMW dealer, the sunroof is recommended for reprogramming as discussed in the User / Shop manuals.
heater lamp- set the fan sped knob to #2 position, and pull the knob off. It might fight ya and you might have to use both hands... no joke. Once the knob is off you'll see the bulb in there. maybe it just fell out of the socket?? If you have it around, use a piece of vaccuum line, 1/4" I think to extract the little bugger
Always stop the engine before disconnecting the battery negative lead and make sure the battery positive lead is isolated i.e. wrapped in a suitable cloth.
WARNING: Radio code saving devices must not be used when conducting work on air bag or fuel systems. It must be noted that, when using these devices, the vehicle electrical system is still live albeit with a reduced current flow.
NOTE: Before disconnecting the battery make sure that the radio receiver/cassette player/mini disc player and compact disc player keycodes are known and, that no data is required from the powertrain control module as battery disconnection will erase any fault codes and idle/drive values held in the Keep Alive Memory (KAM). It is not necessary to disconnect or remove electronic control modules.
Always disconnect the battery before commencing repair operations which require:
The vehicle to be jacked up
Work on the engine
Work underneath the vehicle
Alternatively a Radio Code Saver may be used. With the battery disconnected, a Radio Code Saver will allow sufficient current to pass to maintain the radio receiver/cassette player/mini disc player and compact disc player memory, operate the clock and supply the door operated interior lights while isolating the battery in the event of a short circuit.
Reconnecting the Battery
WARNING: If the battery has been on bench charge the cells may be giving off explosive hydrogen gas. Avoid creating sparks, and if in doubt cover the vent plugs or covers with a damp cloth.
Always make sure that all electrical systems are switched OFF before reconnecting the battery to avoid causing sparks or damage to sensitive electrical equipment.
Always reconnect the battery positive lead first and the negative last, ensuring that there is a good electrical contact and the battery terminals are secure.
Restart the clock (where fitted) and set it to the correct time.
Re-enter the radio receiver/cassette player/mini disc player and compact disc player keycodes and preset' frequencies, if known.
Following reconnection of the battery, the engine should be allowed to idle until it has reached normal operating temperature as the stored idle and drive values contained within the powertrain control module have been lost. Allow the vehicle to idle for a further three minutes . Drive the vehicle at constant speeds of approximately 48 km/h (30 mph), 64 km/h (40 mph), 80 km/h (50 mph), 96 km/h (60 mph) and 112 km/h (70 mph) for three minutes each. This may cause a driveability concern if the procedure is not carried out. This will allow the powertrain control module to relearn idle values.
Does it have RADIO Controls on Steering Wheel? If so does the Air bag light EVER come on While Driving down the road. If no to these Questions.
I dont like at all being the Bearer of BAD news
I am Not Exactly A "RADIO" Expert But I have seen this Before and My Repair for it was Replacement.It is My Thought and Thery that somehow the MEMORY Cuircit gets Burned out adn in turn the On Off Cuircit is also Effected by this, Hoping this is of Good Help to you., RejakWilson
If the radio has ever been removed and replaced with after market radio, and the factory radio was reinstalled, the wiring is incorrect. Also, make sure the ignition wire, and constant 12v wires are not connected together somehow.