Clonk. After two years of looking finally found the cause.

[GMB]

Clonk or Donk Over certain bumps in the road giving a not so subtle bdonk.

Not big or even small imperfections in the road just a certain type, like a 2 inch ridge.

  2 x services and specific  research by Lexus - No Sir everything is perfect thank you.

2 x MOTs by independent MOT stations = All fine nothing loose, not even the exhaust.

Check boot all secure. Check Amp in boot and behind seat All good.

Found the culprit yesterday and 5 bobs worth of draught excluder fixed it.

The boot lid was sitting a tad too low and hitting the rear bumper assembly occasionally. Finally spotted the scuff marks - plastic on plastic fortunately.

Sherlock Holmes eat your heart out.🤔☺️

 

 

[Spacewagon52]

3 hours ago, GMB said:

Clonk or Donk Over certain bumps in the road giving a not so subtle bdonk.

Not big or even small imperfections in the road just a certain type, like a 2 inch ridge.

  2 x services and specific  research by Lexus - No Sir everything is perfect thank you.

2 x MOTs by independent MOT stations = All fine nothing loose, not even the exhaust.

Check boot all secure. Check Amp in boot and behind seat All good.

Found the culprit yesterday and 5 bobs worth of draught excluder fixed it.

The boot lid was sitting a tad too low and hitting the rear bumper assembly occasionally. Finally spotted the scuff marks - plastic on plastic fortunately.

Sherlock Holmes eat your heart out.🤔☺️

 

 

Which model is this?

[GMB]

14 hours ago, Spacewagon52 said:

Which model is this?

2012 isf.  I had a look at the 200t and the gap was much larger. I don't know if it can be adjusted.

[Pielight]

There's nothing much more satisfying than finally getting rid of a long standing irritating noise in your car!