• S-Class (W221): 2007–2011 Mercedes-Benz S550 / S550 4MATIC (or S500 in international markets).
• E-Class (W212 / C207): 2010–2011 Mercedes-Benz E550 / E550 4MATIC (both sedan and coupe variants).
• CL-Class (C216): 2007–2011 Mercedes-Benz CL550 / CL550 4MATIC.
• CLS-Class (W219): 2007–2011 Mercedes-Benz CLS550

other part numbers
• A2731535079
• A2731536591
• A2731535679
• A2731532579
• A2731533579

• Bad Location: It is bolted directly onto the hot engine manifold, causing it to bake under extreme temperatures.
• Hot No-Start: Heat expands the internal circuit board, cracking the solder joints and stopping the car from cranking until it cools down.
• Component Burnout: The internal voltage regulators and ignition/injector driver chips physically burn up over time.
• Fake Codes: Heat damage causes the ECU to report fake camshaft, misfire, or EVAP valve errors, even when those mechanical parts are perfectly fine.