Seat Leon
77 kW EA189 diesel in the Leon 5F, affected by the emissions scandal. Check software update status; verify EGR valve function. Despite Dieselgate, a solid everyday diesel with proper maintenance.
Leon 5F TDI — frugal commuter
With 77 kW from the 1.6 TDI the Leon 5F diesel range starts here. Adequate for everyday use, and the direct chassis still finds enjoyment on a twisty road even with modest power. A solid base choice for long-distance commuters who want practicality.
Engine Weaknesses 4
The CLHA 1.6 TDI 77 kW EA189 is affected by the VW emissions scandal and must receive the mandatory software update. Without the update deregistration by authorities is threatened.
Symptoms: Administrative issue — no direct driving symptoms
The CLHA shares the EGR weakness of all EA189 diesels. Elevated EGR failure rate after the diesel software update. Cleaning or replacement of the valve is usually necessary.
Symptoms: Black smoke, power loss, engine warning light
The CLHA 1.6 TDI EA189 suffers from EGR valve and EGR cooler problems. After the recall software update the EGR function deteriorated on many vehicles.
Symptoms: Rough idle, fault code P0401, coolant loss without visible leak, engine in limp mode
After the emissions scandal recall update the DPF on the CLHA clogs more frequently. Short-trip drivers are particularly affected. Replacement can cost over €1,000.
Symptoms: DPF warning light, power loss, engine in limp mode, frequent automatic regeneration cycles
Vehicle Weaknesses 8
Multiple recalls: child locks on rear doors can deactivate while driving (2015–2016). Airbag modules were also recalled.
On 2014 build-year cars, screws on the camshaft adjuster can come loose and migrate into the engine. The timing belt tears and the engine is destroyed. Manufacturer recall (TPI 2038019/4) — verify completion on any used car.
Seat installs constrictions in the panoramic roof drain hose for noise damping purposes. These constrictions become blocked and divert water into the interior.
Gradual coolant loss occurs on 1.6 TDI and 2.0 TDI Leon 5F models. The usual cause is a defective EGR cooler or a cracked coolant hose.
Springs and shock absorbers on the Leon 5F show above-average wear even at the first roadworthiness inspection. Shock absorbers in particular are frequently flagged.
The headlights of the Leon 5F are prone to developing micro-cracks in the lens cover. At the roadworthiness inspection a complete headlight replacement can be required.
A configuration error in the body control module (BCM) prevents detection of failed front LED indicators. Affects cars produced November 2016 to October 2019. Software update at the dealer is free of charge.
Interior trim panels and footwell covers in the Leon 5F are prone to rattling and squeaking noises. Door trim panels and footwell covers are particularly affected.
Reports & Tests
The third Leon generation performs more solidly at the roadworthiness inspection than its predecessor. Even at the first mandatory check coil springs, shock absorbers, and headlights attract attention; micro-cracks in the headlight lenses can necessitate a complete replacement.
