Powertrain, generic (extended)

P2875 Clutch B Engagement Time Performance/Too Slow

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2875 tells that clutch B takes too long to grip once the control unit has asked for it. Slow filling leaves a gap in drive during shifts into the gears served by clutch B, with a flare of engine speed before the clutch finally holds. No manufacturer explains P2875 in a public document; the requirement for functional monitoring comes from CARB 13 CCR 1968.2. Comparable timing logic is visible in Volvo's rear-axle clutch, which reports slow coupling as P286D00, and in Mitsubishi's Mirage CVT, which waits 2 s for the second auxiliary ratio before flagging P2858. Typical root causes are low or aerated fluid, a partly blocked filter or valve passage, worn seals that leak during fill, or an actuator motor that has lost speed.

Likely causes

Low or aerated fluid slowing the fill of clutch B
Partly blocked filter or valve passage
Worn seals leaking while the clutch fills
Electric clutch actuator running slowly

Symptoms

  • Delayed shifts into even gears with engine flare
  • Noticeable pause in drive during shifts
  • Warning lamp

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–3,500
Time0.5–8 h

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

Parts involved

clutch bclutch actuator btransmission fluid

Related codes

P286DP2876P2877P2858P2879

References: law.cornell.edu, static.nhtsa.gov, static.nhtsa.gov.