Audi S4 (B8)

228 sales analyzed · 4 topics from real Bring a Trailer & Cars & Bids comments.

“These puppies are underrated. Highly recommend. More so in stick.”spikeisgr8 · May 16, 2024

• Supercharger + pulley — the easy power leverdrivetrain
  The 3.0 TFSI is supercharged, and the community's go-to is a smaller supercharger pulley plus a tune — good for 400+ hp on stock internals. Even stock, the blower gives smooth, linear power. …
• Water pump and thermostat are the known weak pointsmechanical
  The plastic water pump and thermostat are the headline B8 failure items (an early water-pump recall replaced plastic housings with metal), along with the PCV/oil separator and, on DSG cars, the mechatronics. On earlier cars these should be resolved by now — confirm they've been addressed. …
• Otherwise a robust engine; carbon is a minor DI checkmechanical
  Once the water pump/thermostat are sorted, owners consider the 3.0T very durable — markedly less needy than the 2.7T or 4.2. As a direct-injected engine it does accumulate intake-valve carbon, so a walnut-blast is a periodic check, but it's lower-priority than on the RS4 and some skip it while running well. …
• Underrated all-rounder — manual is the enthusiast pickvalue-and-market
  The B8 S4 is repeatedly called underrated and one of the most capable daily drivers in its class. It came as a 6-speed manual (with an optional sport differential) or a quick 7-speed S-tronic; enthusiasts favor the manual, and clean manual cars draw the most interest. …