The reversing camera on my 2007 L322 hasn't worked for about 3 years now. However, when the outside temperature goes above about 24 degrees, particularly on sunny days it starts working again! At least for as long as it's warm.

It's really weird - Anybody else experienced this or know which part I need to replace, if any?

Heat causing expansion causing contact to be made maybe on a dodgy wire?? Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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Thanks DrRob, I guess that would make sense, probably the wire going in to the camera at the back of the car - Will get it checked out

mine does the same am going to fix it one day .................................