Powertrain
generic / SAE
P026A
Charge Air Cooler Efficiency Below Threshold
Charge air cooler efficiency dropped below diagnostic threshold — intake air not cooled enough after compression. Risk of knock and loss of power.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / 6A
Possible causes
- Intercooler airflow blocked or core damaged high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 100–1500 €
- Estimated time: 1–5 h
- Component: intercooler
- Component: cac coolant pump
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012