Keep the ignition timing and fuel delivery dialed in with the Standard Ignition Engine Crankshaft Position Sensor PC474, specially engineered for Mercedes-Benz vehicles. It's a direct-fit replacement for many vehicles, among them the 1996-2002 Mercedes-Benz SL600, 1996-1999 Mercedes-Benz S320 and 1996-1999 Mercedes-Benz S420 — see the "Vehicles it fits" section for the full list. This sensor reads the crankshaft's target wheel and reports position and speed to the engine control module, which uses that signal to manage spark timing and fuel injection.
- Accurate Timing: Custom magnetic circuit programming and performance testing provide precise calibration between the target wheel and sensor output.
- Extensive Testing: End-of-line testing for timing, pulse width and signal amplitude, plus in-lab vibration and extreme-temperature testing, supports reliable performance.
- Superior Operation: An integrated analog-to-digital converter and adaptive switch points allow quick processing to adjust fuel and timing.
If a failed crankshaft position sensor is the cause of a no-start, stalling, misfire or hard-start condition, this unit replaces it and helps restore an accurate position signal for normal fuel and timing control.
Interchange: CSS974 · 0281002124 · 281002124 · SU4738 · CSS9194 · 0031537228 · 0031537428 · 003153742864 · 31537428
This part cross-references / interchanges with the following part numbers:
CSS974, 0281002124, 281002124, SU4738, CSS9194, 0031537228, 0031537428, 003153742864, 31537428, PC474
Frequently Asked Questions
What does this crankshaft position sensor do?
It reads the crankshaft's target wheel and reports position and rotational speed to the engine control module, which uses that signal to manage spark timing and fuel injection.
Which vehicles does the PC474 fit?
It fits many Mercedes-Benz models, among them the 1996-2002 Mercedes-Benz SL600, 1996-1999 Mercedes-Benz S320 and 1996-1999 Mercedes-Benz S420. Check the "Vehicles it fits" section for the full list.
What are signs this sensor may need replacing?
A no-start, stalling, hard starting, misfire, or a crankshaft-position-related trouble code may indicate a failed sensor. Diagnose the cause before replacing, as other components can produce similar symptoms.
Is this sensor tested before shipping?
Yes. It receives end-of-line testing for timing, pulse width and signal amplitude, along with in-lab vibration and extreme-temperature testing.
What numbers does the PC474 interchange with?
It cross-references CSS974, 0281002124, 281002124, SU4738, CSS9194, 0031537228, 0031537428, 003153742864 and 31537428.
