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Starting Problems

Glasgow OPC wanted £99 for standard "porsche brand" battery plus labour to "fit" it (and no doubt bash the door again) - so I went and got a Bosch AGM High Tech - part number 570901076 which is the one recommended for 993s - fits exactly in the space and has the hole for the breather pipe. Cost me £144 inc vat, but I'm told CostCo do them a lot cheaper but the Glasgow CostCo does not stock that model.
 
So the weekend has come and I have replaced the battery. The car starts first time - problem resolved. And I have a spare relay for the inevitable (?) failure at some point.

Once again thanks everybody for your input.

Rob
 
Jan,
If the battery really is OK (how old?) then 2 weeks should be OK to leave the car (I do sometimes). Problem may be a drain on the battery caused by a stuck servo motor or similar.

If you have a look in the 993 "technical articles" (see heading just after you come into 993 section of forum) there is a way to test for this (and find out cause).

I've not got a battery conditioner so can't comment on that, but I'm sure I've seen other posts on here recommending them (do a search on "conditioner" across all the forums - the 996 folk seem to often need them).
 
I had a similar problem, leaving in the garage for over a couple of weeks discharged my battery. I replaced the battery to be on the safe side but found the glove box wasn't shutting properly, leaving the bulb inside on. If I had driven every day the battery would have topped up and I'd be none the wiser. Worth checking the boot and glove box for traces of light seepage.
 
Jan,

I bought a 20amp- booster / charger - and this was about £50 ( Motorists Discount Centre ) and charges flat batteries very, very quickly, and will also jump-start the car. This is powered from the mains ( about the size of a shoe box ), pretty heavy approx. 8-10kg I'd guess.

We also have one of those yellow ones, with the tyre compresor built in as well - these don't have as much starting power, and I guess given they are battery powered - then you'll get only a limited number of 'tries' before the charger power is dead.[>:] They also pump up flat tyres very slowly indeed.

3rd option - someone else here ( on a different post ) has mentioed a battery cut out switch / connector. It's an attachedment that fits at the battery - and you can disconnect the battery supply to the car.[:)] ( these are quick to re-connect - as opposed to undoing the bolt to the battery terminal )

Natural downside - no alarm protection, but maybe a big steering wheel lock, and/or a fold-down bollard to your drive could be alternatives.....[8|]

or obviously the final / first solution - tracing the drain . . . . [:D]

In our 993, the other night collecting something from in the car I heard a very slight humming / whirring noise - extremely faint, coming from the ventilation controls / or that area - anyone know what thsi might be - it was well after the car had last been driven, so wasn't / shouldn't have been the engine coling fan??[8|][8|]

TimP[&:]
 
Ade

On my car (C4) the ABD light sometimes illuminates, and it has been suggested a battery which is 'past its best' can lead to such problems.

Therefore my question is did fitting a new battery have any other benefits other than the starting problems?
 
John,
When my battery was on it's way out a year ago my C4's ABD light behaved normally, however I do very occassionaly (once every couple of months) have the red ABD and yellow ABS lights come on and stay on from start up. If I then switch off completely and restart they go out OK.

Mark
 
I find my ABS light comes on when the cars' been doing low, steady revs, e.g. round the multistorey (4 floors) at work, or in a traffic jam on the M62. Again turn the engine off and onn again and it goes out and stays out.

No fault comes up on the OBD, but then that's probably because the light isn't on then, the OBD would need to be run whilst the light was on I guess.
 
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