R129 SL320 Battery help

[A23R]

Hi need to replace the battery on my sl320 r129. Does anyone know what the correct size/amp is? Also any recommended brands? Thanks

 

[AMGeed]

This site shows what battery you need for your SL.
Mercedes-Benz SL Car Batteries - Next Day Delivery

Varta (OEM), Bosch, Exide and Banner are all good choices IMO.
019 Car Batteries

 

[Wearsthefoxhat]

I have always had a good deal from Mercedes Benz. Should just need to reset the windows and radio code.


Sent from my iPad using Tapatalk

 

[A23R]

Thanks much appreciated. So it’s a 100amp battery? Also can I just swap straight out without blowing anything?

 

[AMGeed]

Its a straightforward job to change the battery.
Key out of the ignition and turn everything electrical off (radio etc)
Disconnect the negative terminal first, and re-connect negative last.
As above, you may need to reset the one touch window operation and the radio code.

 

[A23R]

Thanks for the prompt responses

 

[A23R]

Thanks for the prompt responses

 

[BTB 500]

IIRC you may need to turn the steering from lock to lock as well. It's almost 15 years since my R129 had a new battery though so I'm not 100% sure on that

 

[E55BOF]

If you can connect a battery charger to the leads and maintain a 12-volt supply that way, you shouldn't need to reset anything afterwards.

 

[A23R]

Thanks can anyone confirm if it’s definitely a 100amp battery? I’ve just been down to the Kwick fit who are down the road to me who said they have a 019 battery but not in 100amps?

 

[Doodle]

019 is the size and orientation, it's this bit that is most important. 019 batteries come in a variety of Ah ratings, depending on the manufacturer etc. but all around the same rating.

 

[A23R]

Thanks much appreciated. So as long as I get the 019 should suffice

 

[Smart320]

Try somewhere else ! I would go for the 100 ah if you can get one at a reasonable price locally even though I would expect 95 ah would be perfectly fine, that's just me though.

 

[A23R]

To provide a bit more of background to my issue. I initially bought the battery from kwickfit as I was having issues with the car starting (posted on another thread). To rule out the battery at the time I thought I would replace it and trusted kwickfit to provide the correct size. However after getting my issue rectified which was related to a sensor my mechanic mentioned the battery I had was incorrect, they gave me a 110. I went back to kwickfit and spoke to the manager and he confirmed it was the correct battery according to their system but was happy to change if I can provide more details of the one needed. Hence the only reason going back to them.

 

[Smart320]

I now see why you are staying with QF, hopefully they will have a 95 ah in stock

 

[A23R]

Will check with them tmrw, they did mention they had a 019 in stock but said it was a 800amp. Looking at their website can only find the one mentioned and another 019 which is a 850amp.

 

[Doodle]

That will be the CCA (cold cranking amps). Most 019 batteries will be around 800-850 CCA.

 

[A23R]

Thanks that makes sense as the cca on the battery is 900 and ah is 100. I assume that is the correct one?