Audi Smog Check
Audi gas + diesel + PHEV vehicles need California smog. e-tron, Q4 e-tron, Q6 e-tron are BEVs and exempt. Older Audi diesels (A6 TDI, Q7 TDI) — affected by Dieselgate but still on roads.
Common reasons a Audi fails California smog
- Audi TDI diesels — confirm Dieselgate recall compliance
- 2.0T carbon buildup affecting emissions
- Older A4/A6 catalytic converter aging
- Aftermarket APR/Stage 1 tunes without CARB EO#
How to prepare your Audi (pass first try)
- TDI owners: complete Dieselgate recall before testing
- Address any active codes
- Drive 50+ miles
- Return any aftermarket tunes to stock
Audi vehicle categories
- gas (A3, A4, A5, A6, A8, Q3, Q5, Q7, Q8, S/RS)
- diesel (TDI — older only, requires Dieselgate recall)
- PHEV (A6 e-tron, Q5 TFSI e)
- BEV (e-tron, Q4 e-tron — exempt)
Common Audi smog questions
Where can I get a Audi smog check?
Any of our 13 BAR-licensed STAR-certified locations in San Diego, Orange, and Riverside counties handle Audi smog inspections. Walk-ins welcome. 15-25 minute inspections.
What are common reasons a Audi fails smog?
Audi TDI diesels — confirm Dieselgate recall compliance is one of the most common. Visit our shop for diagnosis if your check engine light is on.
How can I prepare my Audi for smog inspection?
(1) TDI owners: complete Dieselgate recall before testing. (2) Address any active codes. (3) Drive 50+ miles.
Is my Audi EV/BEV exempt from California smog?
Yes — any 100%-electric Audi (no gasoline engine) is exempt under California Health & Safety Code §43002. PHEV versions are still required.
STAR-certified shops near you
All locations handle Audi smog inspections. Walk-ins welcome.