Engine code

Vehicles using 4HW engine list:

Which cars use the 4HW engine and what oil to use. Common 4HW engine faults, symptoms, diagnosis, prevention and repair.

Recommended oil for engine 4HW engine.

Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol EDGE 5W-40 A3/B4
Castrol EDGE 5W-40 A3/B4
ACEA A3/B4 βœ”
API SP βœ”
BMW Longlife-01 βœ”
MB 229.3 / 229.5 / 226.5 βœ”
Porsche A40 βœ”
Renault RN0700 / RN0710 βœ”
VW 502 00 / 505 00 βœ”
Chrysler MS-12991 βœ”
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Ravenol VST 5W-40
Ravenol VST 5W-40
ACEA A3/B4 βœ”
API SP βœ”
BMW Longlife-01 βœ”
MB 229.5 / 226.5 βœ”
Porsche A40 βœ”
VW 502.00 / 505.00 βœ”
Renault RN0700/0710 βœ”
Chrysler MS-12991 βœ”
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Mobil 1 FS 5W-40
Mobil 1 FS 5W-40
ACEA A3/B3/B4 βœ”
API SN/SM/CF βœ”
BMW Longlife-01 βœ”
MB 229.3 / 229.5 βœ”
Porsche A40 βœ”
VW 502.00 / 505.00 βœ”
Renault RN0700/0710 βœ”
Chrysler MS-12991 βœ”
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Liqui Moly High Tech 5W-40
Liqui Moly High Tech 5W-40
ACEA A3/B4 βœ”
API SN/CF βœ”
BMW Longlife-01 βœ”
MB 229.5 βœ”
Porsche A40 βœ”
VW 502.00 / 505.00 βœ”
Renault RN0700/0710 βœ”
Chrysler MS-12991 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 4HW engine

ACEA C2
ACEA C3
API SL
API SM
API SN
SAE 5W-40
SAE 10W-40
Fiat 9.55535-S1
Fiat 9.55535-S3

Most common problems, symptoms & fixes for the 4HW engine.

Engine DW12TED4/4HW commonly faces EGR valve clogging, turbocharger wear, and DPF (Diesel Particulate Filter) blockages. Diagnose EGR issues by checking for rough idling or reduced power; cleaning or replacing the valve often resolves this. Turbo problems manifest as loss of power or unusual noises; inspect turbo seals and actuators, replacing worn parts as needed. DPF blockages cause frequent regeneration cycles and warning lights; prevent by regular long drives at highway speeds to burn off soot, or use professional DPF cleaning services. Regular oil changes with quality oil and timely fuel filter replacements help maintain engine health and prevent injector fouling.