Kalisingh

The top won't go down on my 2006 sl 500. New battery in trunk . Flaps under trunk good . Put new battery and now top doesn't go down. O yea and the battery light is on in red . tested both battery and they are good. Alternator tested good too. What can it be ?? Any feed back much appreciated

viper1996

Can you hear the hydraulic pump working???

danaw007

Kalisingh

I can hear it when I hit the lever pushing down. ( as you would when u are closing the top). Pulling up do not hear it (as u would when trying to remove top)
Any thoughts ?

Thanks for reply

Kalisingh

I did not disconnet the starter battery in front. You think I should try to un hook front and back and then install them back ?

Thanks for reply

mercy-me

Welcome to the forum. You need to address the battery issue first. My guess is that the system sees the battery as being discharged and will not let the various switches activate. If the top was working before the new battery install then there is your answer. Clear the battery fault first.

See attached troubleshooting guide.

Good luck,

Bob

moretech

For my '03 model replacing rear battery is no problem, no need to disconnect front starter battery. I must reset windows and ESP system per method described in owners manual. I repalced my rear battery just a few months ago. If I were you I'd use a voltmeter to check for 14v on both front and rear batteries. Red light on does puzzle me as to what is going on. keep us posted.

moretech

Kalisingh

Thanks for the guide , this will definitely help with the diagnose .
Keep you posted.

Rudeney

NO! It's the other way around - always disconnect the rear/consumer battery before the front/starter battery.