elisahunter21
Kadjar Diesel Injection Nozzle Issue
Summary of the thread
A 2017 Renault Kadjar diesel with 81,637 km exhibited poor starting, high fuel consumption, low power, unstable idling, and occasional stalling. These symptoms suggested potential issues with the diesel injection nozzles, possibly due to clogging. While fuel additives were considered as a cleaning solution, the problem was confirmed to be a defective injection nozzle, which required replacement and recalibration. After addressing the issue, the car's performance returned to normal.
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4 comment(s)
elisahunter21 (community.author)
I don't smell diesel or see excessive smoke. I haven't used fuel additives. What type do you recommend and why would it help?
lilianfuchs1
No smell or smoke is good, could have been a leak. There are tons of diesel injector cleaners. Just read reviews and pick one that dissolves deposits and cleans nozzles. But with all those symptoms, I'd worry about more than dirty injectors. It might be more than a simple blockage. I'd take it to a workshop.
elisahunter21 (community.author)
The workshop confirmed a defective injection nozzle. Replacement and recalibration cost 515€. The car now runs as expected. Thanks for the help.
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RENAULT
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KADJAR
lilianfuchs1
That sounds bad! I've heard of similar diesel issues with that mileage. Poor starting, stalling, and higher fuel consumption really points to fuel delivery. Do you smell unburnt diesel or see excessive exhaust smoke? Have you tried fuel additives to clean the injectors? Might be worth a shot before anything drastic.