Mercedes-Benz CL Class 2001–2004 — technical service bulletin
Bulletin 2004070012 · NHTSA communication 10009820 · issued Aug 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2004
model years
8
vehicle entries
Official summary
Replacement of abc pressure supply valve unit hydraulic line. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.