Vehicles using CNSB engine list:

Recommended oil for engine CNSB engine.

Oil Specs Comparison
Castrol EDGE 5W-30 LL
Castrol EDGE 5W-30 LL
SAE 5W-30✔
ACEA C3✔
VW 504.00/507.00✔
MB 229.31/229.51✔
Porsche C30✔
BMW Longlife-04✔
Dexos2✔
Motul 8100 5W‑30 X‑Clean
Motul 8100 5W‑30 X‑Clean
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.31 / 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2❌
RAVENOL VMP 5W‑30
RAVENOL VMP 5W‑30
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2✔
Pennzoil Platinum Euro Full Synthetic 5W‑30
Pennzoil Platinum Euro Full Synthetic 5W‑30
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.31 / 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2✔
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.

Answer generated by AI.

Oil specifications for CNSB engine

SAE 5W-30
VW 504.00
VW 507.00
ACEA C3

Most common problems, symptoms & fixes for the CNSB engine.

Engine CNSB is known for issues like carbon buildup on intake valves due to direct injection, causing rough idling and reduced performance. Diagnosis involves checking for misfires and performing a walnut blasting cleaning of intake valves. The timing chain tensioner may also wear prematurely, leading to rattling noises; inspect and replace tensioners as needed. Preventive maintenance includes using high-quality fuel, regular oil changes with manufacturer-approved oils, and periodic intake cleaning. If turbocharger performance drops, inspect for boost leaks or wastegate issues. Addressing these promptly ensures reliability and longevity in the Audi A3 1.8 TFSI (2014–2016) models.