Why does my Vauxhall Astra Estate ratting during start up?

My Vauxhall Astra Estate (1.6 petrol with 200k on the clock) has developed a heavy rattle/knocking noise. It last for a second or two at the start up. Sounds like it's in the head/VVT area. Always flushed engine with oil changes, but I'm guessing either the oil is draining back completely while the engine is not running or blocked/defective VVT gear. Does either sound correct to you?

Asked on 9 October 2016 by Jon Kempson

Answered by Honest John
Could also be that the oil filter does not have a non return valve. Best only to buy OEM or known brand oil filters. But at 200k you can expect some engine wear.
Similar questions
The timing chain on my 2002 BMW 318i has begun to make a rattling noise. It has 146,000 miles on the clock and I rely on it for my daily travel. Should I replace the chain?
I have a 2007 Vauxhall Astra 1.6 petrol. Once the car has been running for around 5-10 minutes, on idle, it seems to be making a ticking noise. The car sounds like a diesel, but drives fine. I had it fully...
At low revs there is the sound of slight vibration type noise, less so with the windows closed.

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 12% on GAP Insurance

Use HJ21 to save on an ALA policy

See offer