"Is the Master 2.3 d reliable, and what should you check?"
The most commonly reported issue when buying a used 2018 Renault Master 2.3 d: Loose or detached intake/intercooler connections. Also, timing chain noise is frequently reported on high-mileage examples.
Engine: M9T
M9T · turbo petrol · 2.3 d · Used in this car from 2014-2018
Strengths
Large variety of modifications
Fairly moderate fuel consumption
Watch-outs
Injectors often seize in the cylinder head
EGR valve and DPF clogging
Timing chain stretches at low mileage
Known engine issues
Injector SeizingDue to design features, water often gets onto the cylinder head and injectors, causing them to seize. When removing injectors, rust often falls directly into the engine cylinder block, acting as an abrasive. This often leads to scoring and increased oil consumption.
Timing Chain StretchingOne of the most well-known problems of this engine is the modest service life of the timing chain; it sometimes stretches and requires replacement already at 100-150 thousand kilometers.
Typical ProblemsThis is a modern diesel and it has an EGR valve that tends to coke up, and most versions also have a diesel particulate filter with limited service life.
Listed from most frequently reported, each with its source.
Loose or detached intake/intercooler connections
Often reported
After years of use, intake/intercooler hoses with quick-connect fittings may loosen or lose seal, causing pressure drop, power loss, and exhaust smoke.
Engine Bay
Timing chain noise on high-mileage examples
Often reported
Some owners and reliability reports mention a whirring or rubbing noise related to timing chain or tensioners on Renault engines in general; for the 2.3 dCi, there are sporadic reports of similar noises on high-mileage examples.
Timing chain
EGR circuit and EGR radiator failure
Often reported
The EGR system, especially the EGR radiator/valve, is sensitive. The spring or flap may break or stick, causing the flap to break off and damage the turbo or lead to faults.
Exhaust Emissions
Exhaust after-treatment system issues (AdBlue, NOx, DPF)
Often reported
On Euro6 versions (facelift/later years), anti-pollution system problems are reported to increase: NOx sensor failures, AdBlue pump/injector clogging or crystallization, and DPF pressure/temperature sensor warnings, failed regenerations, or limp mode.
Exhaust Emissions
Fuel pump electrical connection failure
Often reported
The fuel pump or its electrical connector may fail, causing intermittent or no-start issues.
Fuel System
Turbocharger failures (often EGR or lubrication related)
Often reported
Turbocharger failures are reported, sometimes due to debris from the EGR or deterioration from DPF regenerations/improper oil.
Turbo
Renault Master 2.3 d technical specs
Renault Master 2.3 d (2018): fuel use 7,3 l/100 km (urban 7,9 l/100 km · extra-urban 7 l/100 km).
Fuel consumption
7,3 l/100 km (urban 7,9 l/100 km · extra-urban 7 l/100 km)
What should I look for when buying a Renault Master 2.3 d?+
When buying a 2018 model 2.3 d, check service history, test drive, and engine/transmission warnings. Most commonly reported issues: Loose or detached intake/intercooler connections; timing chain noise on high-mileage examples; EGR circuit and EGR radiator failure.
What are the common problems of Renault Master 2.3 d?+
Most commonly reported issues: Loose or detached intake/intercooler connections; timing chain noise on high-mileage examples; EGR circuit and EGR radiator failure.
Is the Renault Master 2.3 d reliable?+
Instead of a simple yes/no, it is better to evaluate the proven pros and cons together. This page lists 6 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from Difetti fault database records; brand, fuel, engine, and generation compatibility between source and target vehicle are verified. Topics with insufficient evidence are not shown.