Reliability Summary

Best engine EA211 1.4 TSI — 78/100 BUY
Worst engine EA111 1.4 TSI (CAXA/CAXC/CNVA) — 66/100 CAUTION
Average reliability 72/100

Engine Comparison

Engine Reliability Score Verdict Known Issues
EA211 1.4 TSI
1.4L TSI
78/100 BUY Timing belt - interference engine, long interval +5
EA111 1.4 TSI (CAXA/CAXC/CNVA)
1.4L TSI I4
66/100 CAUTION Timing chain stretch and tensioner failure - chain can jump, engine damage +2

Engines in this model

Known Issues Across All Engines

Issue Engine Severity Onset
Timing belt - interference engine, long interval EA211 1.4 TSI high 120,000 km – 240,000 km
Oil consumption on early builds (2012 to mid-2015, especially 122 PS) EA211 1.4 TSI high —
ACT cylinder-deactivation jerk and actuator fault EA211 1.4 TSI moderate —
Plastic water pump and thermostat housing cracks and leaks EA211 1.4 TSI moderate 77,000 km – 100,000 km
Intake-valve carbon build-up (direct injection) EA211 1.4 TSI minor 60,000 km – 70,000 km
Coolant pipe rubs on air-filter housing and leaks (TSB 2045451) EA211 1.4 TSI minor —
Timing chain stretch and tensioner failure - chain can jump, engine damage EA111 1.4 TSI (CAXA/CAXC/CNVA) critical 98,000 km – 150,000 km
Weak pistons and rings - less common than on the twincharger EA111 1.4 TSI (CAXA/CAXC/CNVA) high —
Elevated oil consumption EA111 1.4 TSI (CAXA/CAXC/CNVA) moderate —

FAQ

Is the Audi A1 1.4 TFSI reliable?

The Audi A1 1.4 TFSI has 2 engine options with reliability scores ranging from 66/100 (CAUTION) to 78/100 (BUY). Average reliability: 72/100.

Which Audi A1 1.4 TFSI engine is most reliable?

The EA211 1.4 TSI is the most reliable engine in the Audi A1 1.4 TFSI, scoring 78/100 (BUY).

What problems does the Audi A1 1.4 TFSI have?

Across all engine variants, the Audi A1 1.4 TFSI has 9 known issues. The most common are related to Timing belt - interference engine, long interval, Oil consumption on early builds (2012 to mid-2015, especially 122 PS), ACT cylinder-deactivation jerk and actuator fault.