So typically my wife spotted a chip at the very top of window of the driver side rear of her new second hand car. I hadn’t wound it down to be fair so didn’t see it. It’s not much, almost as if someone has closed it when something was stIcking out of the window.

It’s double glazed which I assume all L405s are and it appears there are some broken bits of glass where the chip is. Should I just pop some superglue on it to hold all the little bits together as I assume a replacement will be stupid money? The chip is only about 3-4mm deep and maybe 8mm across at the top. 1994 Range Rover LSE Autobiography
1994 Range Rover Vogue LSE Softdash
1994 Range Rover Vogue LSE (transmission failed so now a donor car!)
1994 Range Rover Vogue LSE (knackered donor car!)
1993 Range Rover Vogue LSE
1969 Aston Martin DB6 Vantage
1953 Lagonda DB3.0 Drophead Brooklands
1939 Lagonda LG6

Could you use the resin the windscreen guys use to fill chips - you can get kits on Amazon to do that? Or use your glass cover on the insurance to replace it? Current Fleet:-
2018 Discovery 5 3.0 HSE
2021 Ford Ranger Wildtrack
2019 Ford Mustang Bullitt 5.0 V8
1993 Defender 90 200TDI Pickup

Gone - not forgotten
2016 L405 4.4 SDV8 Vogue SE
2012 L322 4.4 Westminster
2004 L322 4.4 V8 Autobiography LE
2000 P38 RR 4.0 HSE (ex Clarkson test car)

As above - 'windscreen' cover on your insurance covers all windows - so that excess is your worst case.

Clearly it would have to be damage done whilst in your ownership for such claim to be valid