CLS - tales of electrical woe

[Lotusgone]

Tried starting the old girl this morning (CLS500 55 reg), dash lit up but the engine wouldn't turn. Out with the battery charger - boot won't open. Tried the manual key, it wouldn't budge. WD40 later, still no joy.

I now have a car where I cannot access the boot to boost the battery, what's more, the key won't shift in the ignition either. Central locking won't work.

I would be grateful for any suggestions. Is there a clever way of accessing the boot by shifting the back seats?

[Lotusgone]

Thanks for the suggestion - there was a separate charge point on my old BMW540. I was looking in the manual for something similar, nothing obvious but will investigate further.

[Lotusgone]

goldieandblackie said:

Will the boot not open using the key blade!

Sadly not - as mentioned, the manual key will not budge the barrel.

[Lotusgone]

Will give it a go, to see if that will work where the WD40 wouldn't.

Failing that, would replacing the auxiliary battery reboot the electrics to allow access to the boot?

[Lotusgone]

Unfortunately the blade key won't budge at all.

Apparently a new auxiliary battery will open up the electrics, which should then free up the boot. I'll give that a try.

[Lotusgone]

Thanks - I had seen from some googling that the CLK has a positive terminal, but cannot find any reference to it for the CLS.

If any CLS owners know where it might be found, that'll be very helpful.

[Lotusgone]

New auxiliary battery arrived, went to put it in; a word to the wise, always make sure that your battery terminals are compatible with the battery...new battery has the normal round cylindrical points - the old (and original) one has some bracket and screw affair.

Car to be trailered to a local independent specialist this week...