Hi, couldn't see a posting, any ideas on why the hat h wiper blade chatters/squeaks on the glass. Dealer said it's the alcohol in the screen wash, I only use official Skoda/VAG additive. Have cleaned the glass but even when screen wet it chatters/squeaks

Quite a few new cars have the same 'problem' which is invariably cured by a visit to your favourite Bosch retailer. 

30 minutes ago, 6nations said:

any ideas on why the hat h wiper blade chatters/squeaks on the glass

• The glass is very clean
• the glass is very greasy
• the wiper isn't aligned properly to the glass
• the wiper is a cheap Chinese one and not a proper Bosch or OEM one
• the wiper arm spring is weak

Car at dealer for software recall, they've  had to order a full set of wipers as they are proving to dry out and need replacing sooner than previously

You'll be exceptionally lucky to get them for free!