philkwill

Greetings I picked up my 2009 SL 550 in October, still learning it, but one thing that bothers the crap out of me is the key Fob will only lock/unlock the doors and open the trunk. It will not operate the retractable top or windows when pressed and held. What seems to be the problem? Tried both keys and both doors same issue.

Rudeney

You have to aim the key at the IR sensor on the door handle, and be within about 2 feet of it. Even so, the IR sensors on the door handle are known to fail, and honestly, why would you want to stand there and hold to button to operate the roof? A better option is this:

http://www.mods4cars.com/sms/shop/in...ode=view&id=50

philkwill

I like it! I wonder about the cost and installation. Can you pause the top in motion?

Rudeney

Price is $312:

https://www.ebay.com/itm/mods4cars-S...MAAOSwsB9WBeNW

Installation is very easy if you can do some simple wiring and trim work. If not, find a good car audio shop. It takes less than an hour. Really, 30 minutes if you've done one before.

And yes, you can pause it - just hit the lock or unlock button on the fob.

danaw007

Buy the smart top, the best option for these cars hands down! I'm glad I listened to Rodney! It took less than 10 minutes and works as advertised.

Rudeney

Make sure you update to the latest firmware. V4.xx added lots of cool features beyond top control: one-touch seat memory recall, Easy-Entry seat positioning, an extra windshield wiper swipe after misting, and alternating blinking lights when top is in operations.

danaw007

And, my wife’s beloved feature, the rear quarter windows can be raised with the top down.

NHSl550

[QUOTE=Rudeney;7775328]Make sure you update to the latest firmware. V4.xx added lots of cool features beyond top control: one-touch seat memory recall, Easy-Entry seat positioning, an extra windshield wiper swipe after misting, and alternating blinking lights when top is in operations.[/QUOTE
This is cool.. Can you use the console switch to put the top up while driving or do you have to use the fob?

danaw007

[QUOTE=NHSl550;7778696]Console control.

Frederick NL

I guess the cause of OP’s problem, the key fob not activating the roof, is that the accessories battery has insufficient capacity.

Rudeney

Could be, but also failure of the IR sensor in the door handle is very common.

Frederick NL

But the central lock feature works?

bobterry99

Presumably, but locking uses a radio-frequency signal. So, you don't need to point your remote at the infrared receiver in the door handle to lock or unlock your car.

NHSl550

Just installed this. Works great

GoFastr

Will an OEM fob work the top on a 2009 SL65? If so, which buttons and what is the sequence? My fob only seems to have door locks and trunk open on it.

Frederick NL

It should. Point at the IR receiver in either exterior door grip. Press and hold Lock for closing the top. Press and hold Open to open up the top.

GoFastr

Great! Thanks for the response. I never knew this. I'll try this when I get home tonight!

I had ordered the SmartTop from a shop near me but they ended up saying they couldn't get it and I should just get it directly myself.
I like the other advanced features and may still try and get it but I can try this in the mean time.

NHSl550

Smart top is much better than opening the factory way. Well worth the money and you don't have to be 2 inches away from the car. got mine on ebay and had it in 3 days.

Frederick NL

At least in Europe there’s more brands on the market. Make sure you order the one you want.
MB designed what they designed with a reason - safety no doubt. I’m sure someone somewhere is going to get caught in the roof’s motion. I was stupid enough to flip down the windbreaker while the top was in motion (standard mode) and my hand got caught between the breaker and some part of the roof. The force involved is no joke, I was lucky my fingers were forced out of the way and not really jammed. Hurt like hell.
(And yes I want a smart top unit)

ponchik

This smart top unit lets you operate the roof while the car is moving - that is actually the most wanted option for me as i have to close the roof every day before entering the tunnel.

They claim the roof will be operational at speeds up to 60 kmh. I wonder wheter they made any tests and closing\opening the roofat these speeds is actually safe for the roof mechanism. Especially taking into account the luggage compartment lid that open backweards and works like a large speedbrake )

Rudeney

I have a SmartTop on my CLK and it would work up to 40kph (25mph). The canvas was just fine with that, so I'd think the hard to would be fine up to 60kph (40mph). On mine, I cannot operate it much over 40kph (25mph) because the rear trunk lid won't close. I think the cylinder on the lid is weak. If I stomp the brakes and thus throw the lid forward a bit, it will then close.

ponchik

Thanks, I think I don't need more than 40kph, the traffic is not that good

GoFastr

Many thanks for this ebay link!

It is about $50 less expensive than most websites online that I have searched and found.
Ordered it and it's already on its way!