Mercedes New Type Bosch Drive-By-Wire Throttle Body Failing

The new type Mercedes Bosch throttle bodies are starting to fail. Common problems will be
rough idling, lack of power and/or driving problems with different pedal positions (due to faulty
TPS). Cruise control can often fail to operate.

Fitted to Mercedes cars '98 onwards C / E / CLK / SLK Class.

Earlier Mercedes throttle bodies we can also rebuild:
http://www.bba-reman.com/content.aspx?content=mercedes_c_e_s_class_clk_slk_throttle_body