There are several things that could cause the symptoms you have.

- A faulty motor. The motor can make noise but not produce enough torque to open the sunroof

- A broken cable

- Something jammed in the track

- Congealed or wrong lubricant used on the tracks

It is difficult to open the sunroof with the handle since you must turn against the mechanical advantage of the motor gearing. If you are sure you turned hard enough then perhaps something is jammed in the track.

There are DIYs online for relubrication. disassembly and repair of W210 sunroofs.

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Good luck.






1998 E320 Wagon