There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.
 
Recalls
Recalls are issued for cars with safety-related defects or problems
2004 Mercedes-Benz CLK500
Incorrect Software Calibration May Cause Fuel Pump to Remain Powered in a Collision
Electrical & Lights, August 1, 2008
One or More Seat Belts May Not Lock as Designed
Body, Interior & Misc., December 22, 2003
RepairPal Expert Overview:
Some seat belt buckles may have a burr on a metal component of the locking mechanism. This could prevent the seat belt from locking under certain conditions. In the event of a crash, the seat occupant may not be properly restrained, increasing the risk of injury. Dealers will replace the affected seat belts. This recall is expected to begin on December 22, 2003. The Mercedes-Benz recall number is 2003 120006.