W210 E320 Indicators flashing

Russell_Allen

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When I lock my 1997 W210 E320 shortly afterwards the indicators all start to flash really fast and the interior light comes on. I have found other threads on here that say this is the alarm siren but none mentioned the interior light. Is this the problem or could it be one of the door or boot/bonnet switches ?

Any help much appreciated


Regards

Russell Allen
 
A

andy@pcd-ltd

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First thing i would do is get it stuck on a star machine and get the fault codes and what the last alarm activation was read out. As this will give you a better idea of what is going on and also you can check the actual values of the alarm system so you can check in a few seconds if the door or bonnet is open
 

Alex Crow

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hello russell, the above advice is great. to add to it, if you want to do a little free investigation, check the pse unit. if you lift the rear seat, under the driver's side near the battery is a foam case containing a large black plastic unit with wires and plastic pipes to it. if you disconnect all the electrical plugs on it you may see signs of damp or corrosion in there. equally likely are any signs of damp around the outside of the unit. if you see the above issues this suggests the unit is likely to be damaged and could be causing your problems.
 

television

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If the inside lamp comes on, that would suggest that the car has unlocked itself, so looks like damp got in, but why not unplug the siren and try it
 

Bill_H

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Check the siren unit

Same problem exactly. After locking with the remote the indicators flash rapidly.
It was the siren unit mounted in the front wing, (under the plastic wheel arch shield drivers side) removed the siren and all OK except it doesnt have a siren of course. You'll need a security torx bit to remove the siren - I bought a set from machine mart for £7. Nw siren is about £70 I think - easy job.
 

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