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Discussion Starter #1
hello:

Car with 74Kmiles...Car would not start after 30 days idle in my garage. Tried to jump start unsucessfully. Slow-charged battery over night..Car started ok next day. I could not get the out of Park position. I let it run for 3 minutes, and able to get to Drive position. Just got out of the garage, and found out that the car would not shift to second gear (automatic), tried to switch to manual but it would not work either. I drove around the block at 1st gear (2000rpm) and back to the garage. Took the battery to the shop and found out that the battery is bad which was replaced with a new one (under warranty).

Installed new battery. Car started find but I could not get out of Park position. Now the SOS light came on. Driver/passenger windows don't work. Roof won't retrack. Help!!!

I am going to read through all threads just to see what I can find. But if someone could help, I greatly appreciated.

thanks

d
 

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Premium Member 1998 SLK230
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You might need to reset the SRS
Start the car
With the car in park turn your steering wheel all the way right untill it wont turn anymore
Then turn the wheel all the way left untill it wont turn anymore
Then bring it back to center.
 

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Discussion Starter #3
try to crank the car this morning, and nothing thing happened. Argghhhh. Let me try to jump start it again and try to turn the steering wheel. thanks for the infor. and Happy Holidays

d
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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bad cables?
 

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Are you sure the new battery is charged up? Might be worth checking the voltage (should be at least 12.6V) with a multimeter, these cars are known to act very strange if the battery voltage is low.
I'd also make sure the battery connections are in good shape, clean and tight.
 

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When been left undriven--------

Any my opinion; whenever you plan to have your car setting for more than a few days, hook it up to a Battery Tender type of charger. That will end those unpleasant "won't start" events. It will also greatly extend the life of your battery. Any vehicle I have, that will be sitting for more than a day or two, I plug in the charger. modern vehicles have several systems that are on even with the engine not running and the key removed. There are alarm systems, keyless entry, remote top lowering, etc.

The CTEK charger, while a bit more expensive is the best!

Dave Lomshek
Southeast, Kansas
 

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^True. If my car is going to sit for more than a week I use a maintainer.
Have a C-Tek that I've been using, and I recently got a Noco Genius charger, both work great and are really easy to hook up.
 

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Discussion Starter #8
update:

With a new battery installed a night before, cranked the engine, and nothing happened, just lots of clicking noise from the starter. Turned the key off and waited for 5 minutes, and cranked the engine again. Same result. Engine started fine the night before.

Unhooked the cables from the battery and slow charge the brand new battery for 5-6 hours. Reconnected the cables and cranked the engine Engine started fine, but sitll could not shift out of park. Read somewhere on other threads that if I used a long screw driver and push through an opening at the bottom of the shift handle, I could by pass the gear shift out of P position. Tried that and I heard something un-coupled but still could not get out of P position. Engine still on, all electrical systems worked except the windows, top and radio (car did not asked to enter radio codes)

Turned engine off and waited for 5 minutes and turned engine on again. Engine started find, this time I am able to shift to D position. Drove around the block, and noticed that transmission did not shift to 2nd gear. Drove slow, 1st at 3000RPM for about 10 minutes

Strange things started to happen....engine shifted to 2nd, 3rd, 4th without any problems. Switched to manual mode, engine shifted to 2nd, 3rd and 4th..All electrical systems worked, including windows, radio, forgot to lower roof.

Does it take 5-15 minutes to have the entire system check after new battery installation?

Car is working fine now, but since I had to go on a business trip, I won't touch it for another 7 days. Let's hope that I won't happen to repeat this sequences again.

thanks
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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did u check the battery cables?
 

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Still sounds like it may have been a battery voltage issue, your driving around at 3000rpm for 10 minutes may have boosted the charge in the battery. What type of battery are you installing? (it should be a group 48) If you're installing an undersized battery that may be your problem.
 

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Discussion Starter #11
update:

Car has been sitting for 5 days..Car started without any problem. Drove around for about 1 hour. Turned on head lights and saw SRS, ABS and many other lights flashing, and head lights are not very bright. Car made it home. I turned off the engine and could not restart (have a brand new battery install last week)

Since it was late in the evening, I just slow-charge the battery overnight.

Next day, took out the Volt meter and found:

1. Battery has 12.8-12.9V with engine not on
2. Battery has 11.9V with engine on (should be greater than 12.9V, right? perhaps around 13.8V, I read it somewhere)
3. With head lights, heater fan, radio on, battery has 11.7V
4. Turned engine off, battery showed 12.2V

I think I have a dead alternator. Let'e me read about alternator's problems on other threads.

thanks

d
 

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Yup, sounds like a bad alternator. However, I'd wonder why you're "battery" (charging system) warning light on the dash isn't coming on?
 
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