2026-08-20 · 5 min read
Audi A8 Spark Plugs Malaysia
D4 3.0T: 6 iridium plugs, 60,000 km, RM 550–900. D4 4.2 V8: 8 plugs, RM 700–1,200. D4 4.0T biturbo: 8 plugs, RM 700–1,200. D5 3.0T EA839: 6 plugs, RM 550–900. V8 access: 5+ hours labour. Replace all plugs in one service.
A8 Spark Plugs
- 3.0T V6 (6-cyl): 6 × NGK iridium — every 60,000 km
- Combine with carbon walnut blast for maximum value at 60,000 km service
- Cost: RM 650–1,000 (all 6 + labour)
Iridium Plugs for TFSI Engines
The A8's 3.0 TFSI V6 / 60 TFSI V8 / 4.0 TFSI engine requires iridium spark plugs — these cost more than copper or platinum plugs but last significantly longer (60,000 km vs 20,000 km). Using cheaper plugs in an Audi TFSI direct-injection turbo engine causes rough idle, misfires, and can trigger coil pack damage which is expensive to fix. Always replace all plugs as a full set and inspect ignition coils while the engine cover is off. At 4M Car Care iridium plug replacement on the A8 is scheduled at 60,000 km intervals.