Engine code

Vehicles using Q4BA DW12 engine list:

Which cars use the Q4BA DW12 engine and what oil to use. Common Q4BA DW12 engine faults, symptoms, diagnosis, prevention and repair.

Recommended oil for engine Q4BA DW12 engine.

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Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol EDGE 5W-30 C3
Castrol EDGE 5W-30 C3
ACEA C3 βœ”
API SN/CF βœ”
VW 505.00 / 505.01 βœ”
MB 229.31 / 229.51 βœ”
Dexos2 βœ”
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Mobil 1 ESP Formula 5W-30
Mobil 1 ESP Formula 5W-30
ACEA C3 βœ”
API SN/CF βœ”
VW 505.00 / 505.01 βœ”
MB 229.31 / 229.51 βœ”
GM dexos2 βœ”
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Liqui Moly Top Tec 4600 5W-30
Liqui Moly Top Tec 4600 5W-30
ACEA C3 βœ”
API SN/CF βœ”
VW 505.00 / 505.01 βœ”
MB 229.31 / 229.51 βœ”
GM dexos2 βœ”
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Sunoco Ultra Full Synthetic Euro 5W-30
Sunoco Ultra Full Synthetic Euro 5W-30
ACEA C3 βœ”
API SN/CF βœ”
VW 505.00 / 505.01 βœ”
MB 229.31 / 229.51 βœ”
GM dexos2 βœ”
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Oil specification key
βœ” – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
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Answer generated by AI.

Oil specifications for Q4BA DW12 engine

SAE 5W-30
ACEA C3
API CI-4+
WSS-M2C913-D

Most common problems, symptoms & fixes for the Q4BA DW12 engine.

Engine Q4BA DW12 is known for issues such as EGR valve clogging, turbocharger wear, and DPF (Diesel Particulate Filter) blockages. For diagnosis, monitor for loss of power, excessive smoke, or warning lights. Use diagnostic tools to check fault codes related to EGR and turbo systems. Prevention includes regular oil changes with quality oil, timely air and fuel filter replacements, and avoiding frequent short trips to allow DPF regeneration. Solutions involve cleaning or replacing the EGR valve, servicing or replacing the turbocharger if worn, and performing forced DPF regeneration or replacement if blocked. Regular maintenance is key to longevity.