Transit VANOS issue

Sounds familiar. I've seen similar symptoms on other vehicles, though not specifically a Transit. Have you checked for any signs of oil sludge? Low oil pressure can mess with VANOS timing and cause those issues.

Thanks for the quick response. I haven't specifically looked for oil sludge, but it's a good point. Where would you suggest I check for that in relation to the inlet camshaft and solenoid valves? Also, would low power to the solenoid cause similar behavior?

Yeah, low power can definitely cause issues. I'd check the oil around the VANOS solenoid and the filter first. If you see sludge, it's a bad sign. Honestly, with those symptoms and the mileage, I'd say it's time for a good mechanic to take a look.

Understood, I appreciate the advice. I'll inspect for sludge and check the solenoid power, but it sounds like a visit to the workshop is inevitable. It was a faulty camshaft solenoid valve, repair cost 250€.