After some advice had new battery in January this year all been fine all of a sudden flat battery at the weekend so had the breakdown service out they did a test and the alternator is not hitting the required output required but pick up the engine revs gets to about 13.7 on the output to the battery, the battery is charging ok no battery light coming on .Had a quote for a replacement alternator £600 all in is this a common failure

DIY ?

https://www.fullfatrr.com/forum/topic23089-30.html

and £170 for the part....

https://www.island-4x4.co.uk/alternator-td...30550.html .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Common enough failure at that age. Its the rectifier that goes so see if you can get it repaired rather than a whole new part.
Did mine last month for €80 2007 Vogue TDV8 in Zermatt Silver with Charcoal

Thanks for the replies really appreciate the advice, ideally need a garage to carry out the work as back problem has finished my days of spanner work

Had the new alternator fitted at my local garage picked it up Friday went to use it yesterday started it up and its leaking coolant badly it looks like it’s spraying from the rad and then onto the fan , would this have been damaged during the work as it was definitely not leaking beforehand

Yes

Workshop Manual advises removal of radiator to do the job (although it "can" be done without) .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Thanks for the reply, that’s I what thought will giving it back to them tomorrow

Definitely down to them. A piece of cardboard can be used to protect the radiator instead removing it.
Clearly they did neither. Good luck sorting it. 2007 Vogue TDV8 in Zermatt Silver with Charcoal