VW Tiguan
Biturbo diesel with 240 hp and two-stage charging. Very strong pull, but complex due to biturbo technology. Wastegate and pressure sensors are typical wear items.
BiTurbo diesel with bite
240 hp and 500 Nm in the updated Tiguan — the most powerful diesel package is also the most entertaining.
Engine Weaknesses 5
The CUPA 2.0 TDI BiTurbo is affected by the Dieselgate recall. The ECU detected test bench conditions and only activated full emission control during tests.
Symptoms: Higher NOx emissions in real driving, possibly changed throttle response after software update
The CUPA (184 hp FR variant) EA189 in the Leon 5F is part of the VW diesel emissions scandal. The mandatory software update increases EGR activation. FR owners who drive sportily report increased fuel consumption after the update.
Symptoms: After update: EGR fault, black smoke, power drop, fuel consumption +10–15%
The EA189 CUPA frequently shows faulty turbo pressure sensors (P2563/P2564). The higher boost of the FR model stresses the sensor more. On failure: limp mode with reduced power.
Symptoms: Engine warning light, fault code P2563/P2564, power drop during boost build-up, whistling from turbo
The boost pressure sensor of the CUPA 2.0 TDI BiTurbo fails and activates limp mode. Sporadically no boost pressure despite intact turbochargers.
Symptoms: Engine enters limp mode, P0299 boost pressure too low, power loss at low rpm
The CUPA 1.5 TSI evo is equipped with an OPF that cannot fully regenerate with predominantly short-trip use and clogs. Result: engine warning light, increased consumption, power loss.
Symptoms: Engine warning light, increased fuel consumption, power loss, OPF warning message
Reports & Tests
533 owner complaints filed with NHTSA (2020–2024). Most reported: Engine (165), Other (127), Electrical (116).