Dacia Logan
Renault's 1.5 dCi diesel engine (K9K) is considered exceptionally long-lived. On the 63 kW variant, watch the high-pressure pump and injectors — early series with Delphi injection were more susceptible. Strictly observe oil change intervals; timing chain lasts a very long time with correct maintenance.
Solid diesel engine
The 1.5 dCi with 86 hp is a proven diesel. Economical, strong on torque and long-lived.
Engine Weaknesses 5
Delphi injection system (pre-2006) is particularly troublesome — injectors worn out by 60,000 km. Siemens system (from 2006) is significantly better.
Symptoms: Delphi injection system (pre-2006) particularly problematic — injectors worn out by 60,000 km
Turbocharger can develop play from 60,000 km, especially with short-trip use and no warm-up. Whistling and smoke as symptoms.
Symptoms: Turbocharger can develop play from 60,000 km
Neglected oil changes can cause connecting rod bearing failure — catastrophic engine damage. Regular oil changes every 15,000 km are non-negotiable.
Symptoms: Neglected oil changes can cause connecting rod bearing failure — catastrophic engine damage
DPF clogs when the car is used mostly for short trips. Regeneration fails, engine power is reduced. Regular motorway runs help.
Symptoms: DPF clogs with predominantly short-trip use
EGR valve gets coked up with soot, especially in city traffic. Power loss and increased emissions. Cleaning every 60,000 km recommended.
Symptoms: EGR valve sooted up, especially in city traffic
Vehicle Weaknesses 8
Due to poor paint quality and inadequate corrosion protection, rust forms early on sills, wheel arches, and underbody. Vehicles in salt regions are particularly badly affected.
Recall for affected models due to rust on the rear shock absorber mounts. Structural weakening can compromise driving safety.
Steering and steering joints are among the most frequent MOT complaints. The defect rate is well above average for comparable vehicles.
Brake discs and pads wear faster than average on the Logan I. Regular MOT complaints, braking performance frequently insufficient.
The Logan I's exhaust system is known for early corrosion. A full replacement can be needed after just a few years and regularly causes MOT failures.
The Logan I's low beam shows far above average defect rates at MOT. According to inspection reports, front lighting is up to three times worse than average.
Recall for unreliable ABS warning light failures. The warning light malfunction can delay detection of ABS defects.
The Logan I's interior suffered from cheap plastics and poor panel gaps from the start. Over time, pronounced rattling develops from the dashboard and door panels.
