IsItAGoodCar
Reliability Guide

Common Problems with the
2017 Renault Zoe

The 2017 Z.E. 40 upgrade introduced a denser 41kWh battery pack that virtually doubled real-world driving range to 150–180 miles, offered with updated R90 and optional quick-charge Q90 motors.

What changed for 2017

  • •Introduction of the 41kWh usable Z.E. 40 battery pack developed in partnership with LG Chem
  • •Real-world driving range elevated to a dependable 150-180 miles depending on seasonal temperature
  • •New R90 (68kW/92hp) motor introduced as mainstream option alongside niche 43kW AC-capable Q90
  • •Introduction of top-tier Signature Nav trim level featuring heated leather seats and Bose premium audio

Common MOT watch-outs

  • !Corroded and scored rear brake discs resulting from prolonged gentle regenerative braking
  • !Front suspension drop link and track rod end play caused by supporting the heavier 41kWh kerb weight
  • !Headlamp beam aim misaligned following bulb changes or front bumper removals
5
Known Issues
3
Serious
2
Moderate
0
Minor

All Known Issues

Battery Charger Box (BCB) Failure

SeriousElectrics & Electronics

The BCB is responsible for managing AC charging. It is a common failure point, often caused by internal component failure or moisture ingress. A failed BCB will prevent the car from charging on AC, though DC rapid charging (if fitted) may still work.

Est. Repair Cost: £1,500–£2,500
Warning Signs:

"Unable to charge" message, Car trips house circuit breaker when plugged in, Intermittent charging at 22kW/11kW

What to Inspect:
  • Test the car on both a home 7kW charger and a 22kW public post
  • Check for any "Check Electrical System" warnings
  • Verify charging begins immediately without errors
Verified by IsItAGoodCar Research Team

Power Electronic Box (PEB) Failure

SeriousEngine

The PEB (Inverter) converts DC from the battery to AC for the motor. Failure symptoms often start with intermittent power loss or unusual whining noises before total vehicle immobilisation.

Est. Repair Cost: £2,000–£4,000
Warning Signs:

"Electric Motor Failure" warning, Sudden loss of power while driving, High-pitched electrical whine, Car stuck in "P"

What to Inspect:
  • Listen for unusual electrical whining under heavy acceleration
  • Check service history for inverter/PEB cooling fluid changes (critical every 4 years)
  • Scan for DTCs related to isolation faults
Verified by IsItAGoodCar Research Team

12V battery electrical chaos

SeriousElectrics & Electronics

A weak 12V battery is the root of most Zoe "breakdowns". It can cause "Check Electrical System" messages, charging failures, and total vehicle immobilisation.

Est. Repair Cost: £100–£200
Warning Signs:

Car refuses to start or charge, Random dashboard warning lights, Keyless entry failure

What to Inspect:
  • Age of the 12V battery (sticker on battery)
  • Voltage using a multimeter if possible
  • Service history for battery replacement
Verified by IsItAGoodCar Research Team

Suspension (Drop links and ball joints) wear

ModerateSuspension & Chassis

Due to the heavy battery pack, the Zoe’s front suspension components, particularly drop links and ball joints, wear faster than on a standard Clio.

Est. Repair Cost: £120–£350
Warning Signs:

Knocking noise over bumps, Vague steering feel, Uneven front tyre wear

What to Inspect:
  • Listen for clunks on the test drive
  • Inspect front tyres for inner edge wear
  • Check MOT history for suspension advisories
Verified by IsItAGoodCar Research Team

Charging port and flap failure

ModerateElectrics & Electronics

The locking pin for the Type 2 cable can fail, or the flap motor can seize, preventing the car from charging or releasing the cable.

Est. Repair Cost: £150–£450
Warning Signs:

Charging cable won’t lock or unlock, Charging flap stuck shut, Intermittent "Check Charging" message

What to Inspect:
  • Test the charging flap operation multiple times
  • Check for loose or corroded pins in the charging socket
Verified by IsItAGoodCar Research Team

Buying Tips for 2017 Renault Zoe

  • Verify the battery lease status with Renault Financial Services (Mobilize) or confirm 'i' full battery ownership
  • Check that the charging port locking pin engages smoothly and that the release button inside the cabin works
  • Assess winter range expectations; 41kWh models without heat pump pre-conditioning drop range by 25-30% in freezing weather
20162018–2019
Check a 2017 Renault Zoe by Registration