Discovery 2 TD5 2004 suspension height sensors.

Fitted one to right O/S and have to fit one to N/S (when it arrives). I read up on precautions to take and there were 3 different opinions;
1) Just swap sensor unit over;
2) Swap sensor unit but do not put the keys in the ignition; (how I did it with battery still connected; seems OK)
3) Disconnect the battery before unplugging the sensor unit.

Which one is right - or does it not matter? What do LR do?

Thanks in advance,

Steve.

Follow advice nr 3 and you should be OK and not need calibration unless the problem occured due to bad electrical contact at the sensor's plug...of course reconnect battery only after the sensor was replaced.

I'm pretty sure my radio has already lost its coding (see the "battery woes" thread!!) so would disconnecting the battery cause any other issues? I have a brand new battery to swap in so if there are no risks of programming loss with the pcb's then I'll do the sensor while the battery is off the car. Is disconnection time sensitive? Sorry if the questions are mundane, but I need to get this car running for Monday...... or else. And I've seen what "else" can mean........

Cheers.

Steve.

i just swap the sensors with keys removed, never had a problem yet even when height was altered by a broken sensor ,new one corrected it

Keys removed or not the SLABS is "alive" for up to 1.5 hours after the ignition was turned off and becomes alive again if a door is opened... unplugging a sensor with powered SLABS is always a risk to loose stored heights, that's a fact and happened not once even though there were cases when it didnt but IMO that was cos the sensors were unplugged after the SLABS "went to sleep" , disconnecting the battery will affect ONLY the radio code, the clock, aircon settings and the tripmeter, nothing else

Thanks for the replies - I'm going to pull the battery anyway so no troubles. IMO, it pays to ask the correct method regarding the electrickery fitted to modern cars.

Cheers guys,

Steve.