Body, generic

B0108 LIDAR Washer Actuator C

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

B0108 covers lidar washer actuator C. Robotaxis with several lidars, for example on roof and corners, are where a third circuit would fit. Valeo lists a heated telescopic lidar nozzle, a 2021 PACE award finalist, and says it supplies cleaning systems with ECU and software for private cars and robotaxis; a telescopic nozzle adds a moving part that can stick in frost. Solero's 4/3-way valve distributes fluid centrally so fewer DC pumps are needed, meaning actuator C may be a valve position rather than a pump. Jalopnik noted in 2018 that Waymo cleaned its lidar domes with small wipers and that Cruise was building its own cleaning hardware. No manufacturer assigns C publicly or documents B0108.

Likely causes

Telescopic nozzle C stuck by ice or dirt, actuator overloaded
Distribution valve position C not switching
Nozzle heater or shared connector on circuit C faulty

Symptoms

  • Lidar C not cleaned, especially in frost or snow
  • Automated driving refuses to engage or hands back control

Repair estimate

DifficultyMediumDIY possible
Parts and labour€60–800
Time0.3–2.5 h

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

Parts involved

lidar washer actuator cwasher pumpobject detection maintenance module a

Related codes

B0106B0107B0109B012F

References: valeo.com, solerotechnologies.com, jalopnik.com.