I left top half way up while cleaning rear galass. now top will not go down. got trunk working & roll bars go up and down. when i unlatch the top i hear nothing. normally you can tell the top is engaged. red light blinks whether i push it down or up. can i resynchronize it myself. thank you

Did you take it to a qualified repair shop? Do you know what DTC'S - diagnostic trouble code's are ?
DTC B1010 08: System Sensors Data Mismatch signal invalid
DTC B1296 01: Movable Roof Header Unlatched Sensor Circuit short to battery
DTC B1296 06: Movable Roof Header Unlatched Sensor Circuit short to ground or open
DTC B1296 58: Movable Roof Header Unlatched Sensor Circuit incorrect reaction after event
DTC B1296 59: Movable Roof Header Unlatched Sensor Circuit circuit/component protection time out

DTC B1307 58: Movable Roof Latch Signal Circuit incorrect reaction after event
DTC B1307 59: Movable Roof Latch Signal Circuit circuit/component protection time out

DTC B1395
S3 and S4 are part of the Rear Compartment Lid Release switch. The folding top control (FTC) module uses S3 and S4 to determine whether the claws at the rear of the deck lid are latched into the deck lid or unlatched. S3 closes and supplies a 12-volt reference to the signal circuit when the claws are unlatched. S4 closes and supplies a 12-volt reference to the signal circuit when the claws are latched.

DTC B3669 01: Deck Lip Position Sensor Circuit short to battery
DTC B3669 06: Deck Lip Position Sensor Circuit short to ground or open
DTC B3669 58: Deck Lip Position Sensor Circuit incorrect reaction after event
DTC B3669 59: Deck Lip Position Sensor Circuit circuit/component protection time out
DTC B366A 58: Deck Lid Latched Left Front Sensor Circuit incorrect reaction after event
DTC B366A 59: Deck Lid Latched Left Front Sensor Circuit circuit/component time out

Your best bet , take it to a qualified repair shop .

You may be able to take out the bottom of the rear seat and then unbolt the bottom half of the top past to get access.

Push on the seat to the rear while pulling the cable release. Sounds like latch is adjusted too tight. If this works make adjustment before putting the seat back up. Open trunk & you should also be able to get to the speakers and the latch for the seat back. May require a screwdriver or something narrow & long to push on the latch arm while another person pushes & pulls the seat back to unlatch.

Chris

ASE Master Certified sense 1979

I believe you do this in this order. Roll windows down, release the latch at the top of the windshield, raise the front of the top, release rear cover by pulling the latch near the rear seat, Pull up the back of the top and then pull up on the rear cover. The back of the top should now fit into the opening under the rear cover. Continue to fold the top into this space. Push down on the rear cover to lock (won't be able to open trunk if not engaged.) To raise it, release rear latch cover, open rear cover and pull top out of opening. Raise rear of top so you are able to now close the rear cover, set rear of top down on cover and then pull fron of top down and engage the fraont latch. Hoe that helps.

Pretty common C5 problem. This is what I do.

Roll the windows up, use the trunk release inside the car on the dash. Once you close the driver's door the air pressure will pop the trunk up about 1/2" which is enough for you to get your fingers underneath.

The control module has set a fault and it will have to be reset. They are sensitive to voltage & must have 12 volts to operate properly.
The windows and top will need to be resync. I cannot find any information regarding the diagnostic procedure for the roof .. it states there is a procedure to diagnose the fault with the number of flashes the switch makes .. a dealer may be your best option on this fault .. I hope this helps some.

I have 1997 mercedes benz sl500 after changing my battery, my roll bars will not go down. how do I get my roll bar back down?

The window position is monitered by the softop control module. It sounds like the glass is very dirty and drawing too much amperage during window operation. The soft top is electro hydraulic. The roll bar is operated normally with hydraulics but it is mechanically released in an emergency situation. 1st make sure your windows are clean and the express(one touch operation) is working-the soft top will not function properly if the windows are not synchronized. Next be sure your roll bar works-hold swith in up position to lock roll bar rams in if they have been deployed. next put your top all the way up. untill windows roll up and try it with the engine running and trans in nuetral- if it still does not work mechanically secre rear of top with tool provided in your tool kit the owner's manual will tell you how to do this. good luck

It is normal for the roll bar to rise when top is down. It seems like the rear valance cover is not secured and the soft op does not understand what position it is in. There is a way to manually close top. it is stated in your owners manual. also I would try to close top with button(assuming your vehicle will start and the battery has good voltage) start car and try to operate top down and try pushing on rear cover also make sure the retractable cover in trunk is extended to compress operation switch

often times this problem ends up needing a front sunroof section of the conv top replaced. The cable that drives the hooks to unlatch is most likely broken and that is currently the only fix. EXPENSIVE. Sorry