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P0299 Code — Meaning, Real Fixes & Costs | MyCarFault
P0299
🟠 High Engine system

P0299 — Turbocharger Underboost

3 Driver reports
3 Solved cases
3 Verified fixes
0 Wrong repairs reported

Most Verified Fixes for P0299

Ranked by confidence score — same vehicle matches weighted higher.

Wastegate actuator rod loose. Retightened and adjusted. Also found small boost leak at throttle body connection. Repaired both. Full boost pressure restored. 0%
0 worked · 0 total votes · ⚪ Unverified
Lower charge pipe burst at clamp area — common failure on MQB platform. Replaced with silicone charge pipe kit $120. No more boost leaks. 0%
0 worked · 0 total votes · ⚪ Unverified
BMW N54/N55 wastegate rattle: the wastegate actuator rod becomes loose causing rattling especially on cold startup. Also causes boost pressure codes and power loss. Fix: 1) Short term: some owners use throttle-heavy driving to reseat wastegate. 2) Permane 0%
0 worked · 0 total votes · ⚪ Unverified

Driver Reports — P0299 3 reports

🟢 SOLVED 80% BMW N54/N55 wastegate rattle and boost problems
BMW 2007 👁 1,892
🟢 SOLVED 80% VW Golf R 2016 MQB charge pipe failure
Volkswagen Golf 2016 👁 1,202
🟢 SOLVED 80% Hyundai i30 2017 1.4T P0299 boost pressure low
Hyundai i30 2017 👁 1,052

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