ancillary

my vito gearbox is not 100% smooth when changing gears, and i have been told that the "plastic part" mentioned in the following paragraph could possibly help. Can anyone tell me please what it is called or even part number?????. Do not bother with the cables yet as i had all that changed...

Hi all, A couple of days ago, my E320 CDI complained that it had no washer fluid. Yesterday, on a motorway drive, I suddenly heard a ticking noise from under the bonnet, almost like the sound of small stones hitting the wheel arch. My wife drove the car today and noticed that it was worse...