Renault Symbioz TCe 145 Mk1 Reliability

A 4.4 m family crossover slotted between Captur and Austral, sharing the CMF-B platform and well-known 1.3 TCe H5Ht engine co-developed with Mercedes-Benz. Launched mid-2024, so used examples are scarce and most are still under factory warranty. Engine has a decade-long track record from Captur, Kadjar and Megane: improved over the older 1.2 TCe but with documented turbo pipe, ignition coil and infotainment quirks. Parking brake recall (code 0EY9) affects April 2024 to May 2025 production.· more· less

Manual gearbox avoids EDC issues Proven 1.3 TCe engine

Parking brake recall on most units OpenR infotainment software bugs

Buy if: You want a roomy family crossover with a simple manual mild-hybrid drivetrain and can verify the parking brake recall has been completed.

Avoid if: You need long used-market track record or want the more refined E-Tech full hybrid instead of this mild-hybrid manual.

Maintenance costs

€700 - €1,350/year

15,000 km/year

Fixed costs

€450-750

Risk buffer

€250-600

Common Problems

Parking brake actuator recall (0EY9)

€0 - 01 of 6

Incorrectly angled sensor in parking brake actuator on units built April 2024 to May 2025 · more· less

Renault recall code 0EY9 affects Symbioz units built between 12 April 2024 and 7 May 2025, along with Austral, Captur, Espace, Megane E-Tech, Rafale and Scenic E-Tech. The position sensor inside the parking brake actuator is angled incorrectly, so the stopping pin can be placed wrong and the parking brake may fail to engage when the P button is pressed, the seatbelt is released or the driver door is opened. The assisted parking brake (APB) still functions, but unexpected vehicle roll-away is the risk. Repair is free at any authorised Renault workshop. Verify completion with the VIN before purchase.

Turbo intercooler pipe / hose detachment

€150 - 6002 of 6

Long-standing 1.3 TCe complaint: turbo pipes work loose and cause limp mode · more· less

The 1.3 TCe H5Ht has had a recurring complaint since its 2017 introduction: clamps on intercooler pipes work loose, the pipe pops off, and the engine drops into limp mode with reduced power. Reported on Captur, Kadjar and Megane forums, and the engine is essentially unchanged in the Symbioz. Independent shops typically refit and re-clamp for under €150 if no parts are damaged. Replacement of cracked plastic pipes or charge-air sensors runs €300-600.

OpenR Link / infotainment software faults

€0 - 4003 of 6

Phone pairing drops, audio cut-outs, CarPlay/Android Auto crashes · more· less

Owner reports on the Symbioz forums and Honest John reviews describe the OpenR Link Google-based infotainment dropping Bluetooth pairing at start-up, cutting audio mid-journey, and crashing CarPlay/Android Auto sessions back to the native UI. Many cases are resolved with dealer software updates (free under warranty). Out of warranty, expect €100-400 for diagnosis and update labour. Some early units required complete head-unit replacement under quality hold.

Ignition coil and spark plug premature wear

€200 - 5004 of 6

1.3 TCe coils and plugs known to fail earlier than expected · more· less

The 1.3 TCe is widely reported to be hard on ignition coils and spark plugs, with failures typically appearing from 60,000-90,000 km rather than the 100,000+ km the schedule suggests. Symptoms are misfires, rough idle, and check-engine light. Replacing all four coils plus plugs is straightforward: parts €120-250, labour 1-2 hours. Sticking to the 30,000 km plug interval rather than stretching it helps.

Thermostat housing / coolant leaks

€250 - 7005 of 6

Plastic thermostat housing develops weeps as it ages · more· less

Carried over from the Captur Mk2 1.3 TCe: the plastic thermostat housing and adjacent coolant hoses develop slow leaks, typically after 80,000-120,000 km. Catch it early and it is a cheap housing-and-gasket job. Ignored, it leads to overheating and a much larger bill. Watch for sweet smell, low coolant warnings and stains on the engine front.

Front lower arm bushing wear

€200 - 4506 of 6

CMF-B suspension known for premature front bush wear · more· less

Captur Mk2 owners on the same platform have reported front lower arm bush wear as early as 30,000 km, with symptoms of clunking over bumps and uneven front tyre wear. Replacement is roughly €100-200 per side at an independent shop. The Symbioz is heavier than the Captur, which may not help bush life.

Proven drivetrain, but new model with active recall and infotainment bugs

The 1.3 TCe H5Ht engine in manual form is one of Renault's most predictable petrol units, with the EDC automatic kept out of this variant. The biggest immediate concern is the parking brake recall affecting almost all early production, followed by infotainment software bugs that early owners are still flagging. Long-term durability looks reasonable based on its track record in the Captur.

Pre-Purchase Inspection Checklist

General checks

Service history
Even early cars should have one Renault dealer service stamp; mild-hybrid system needs proper diagnostic check.
Tires
Check tread depth, age (date codes), and uneven wear that could hint at suspension bush wear.
Cold start
Listen for misfires or rough running on a fully cold start, indicative of coil issues.
Test drive
Minimum 20 minutes including motorway and stop-start traffic to test mild-hybrid stop-start behaviour.

Specific for this vehicle

Verify parking brake recall 0EY9 completed
Critical for cars built 12 April 2024 to 7 May 2025. Contact a Renault dealer with the VIN to confirm the repair has been performed.
Test OpenR Link infotainment thoroughly
Pair a phone, start CarPlay/Android Auto, play audio, restart the car. Watch for dropped pairing, audio cut-outs or crashes.
Inspect turbo intercooler pipes and clamps
Look at the intercooler hoses and clamps for fresh oil residue or loose fitment. Any limp mode history is a red flag.

+ 3 more checksShow less

Coolant level and condition check
Look for stains around the thermostat housing and front of the engine. Coolant should be at MAX cold, clear and not brown.
Listen for front-end clunks over bumps
Drive over speed bumps and rough surfaces. Knocking from the front suggests lower arm bush wear.
Check all software update history
Ask the dealer to confirm latest OpenR and BMS software versions are installed. Many faults are fixed via update.

Recalls and Technical Service Bulletins

Parking brake actuator sensor (code 0EY9, April 2024 - May 2025 production) Critical - verify completed

Contact a Renault dealer with the VIN to verify the 0EY9 parking brake recall has been completed. Given how recently the Symbioz launched, expect further service campaigns to emerge.

Warranty Status

Factory warranty (2 years) Active on all units (launch was mid-2024)

Mild-hybrid battery warranty Typically 3 years - check with Renault

Rust perforation warranty 12 years

All Symbioz examples are still inside their original 2-year Renault factory warranty as of early 2026. Confirm the original delivery date with the seller and check whether any extended warranty was bundled at sale.

Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.

This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.

Renault Symbioz TCe 145 Mk1

↔ Also consider