2026-08-20 · 5 min read
Audi A4 Workshop Cases Malaysia — 4M Car Care
Real A4 cases: B9 2.0T 65,000 km rough cold idle — carbon walnut blast. B9 70,000 km DQ381 harsh 3-4 shift — fluid never changed, flush + adaptation. B9 60,000 km HPFP ticking — cam follower replaced.
Case 1: A4 B9 2.0T — HPFP + Cam Follower (58,000 km)
A4 B9 with 58,000 km: customer reported rough idle and hard starting in mornings. VCDS showed P0087 (fuel pressure too low). Inspected cam follower before replacing HPFP — follower was worn through (0.3mm metal remaining from 3mm original). Replaced follower + HPFP ( combined). If we had just replaced the HPFP without checking the follower, the new pump would have failed within 10,000 km. Total.
Case 2: A4 B9 — DSG + Carbon Service (65,000 km)
A4 B9, 65,000 km: came in for oil service, DSG fluid dark (never changed), carbon inspection showed heavy intake valve deposits. Combined: DQ381 fluid + adaptation reset () + walnut blast 4 ports (). After service: noticeably sharper throttle response, smoother gear changes. Owner now scheduled for every 40,000 km DSG service. Total service.