Chassis, generic

C0810 Air Suspension Compressor Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

C0810 cannot be located anywhere public, whether in code lists, the NHTSA index or the GM, Saab and Mitsubishi material. The title concerns the electrical drive of the air suspension compressor, an electric motor that Continental describes with carbon brushes stressed by inrush current. Lexus uses its own code C1752 for the motor circuit on the 2013-17 LS460 and traces it to corrosion inside the compressor after water enters through the intake tubes; the fix is a new compressor and motor assembly. Mercedes-Benz likewise reports moisture and corrosion in the compressor that cut its output and leave deposits on the valve block seats, and counters it with software. A dead circuit means the springs can no longer be filled, so the body sinks or stays at one level.

Likely causes

Water ingress and corrosion seizing or loading the compressor motor
Compressor relay or fuse failed
Open, shorted or corroded wiring or connector at the compressor

Symptoms

  • Air suspension warning message in the cluster
  • Vehicle sits low or does not change ride height

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–1,400
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

air compressorair suspension modulecompressor relay

Related codes

C0815C0301C0317C0840

References: static.nhtsa.gov, static.nhtsa.gov, patents.google.com.