Just won a brand new rear wiper arm for £26.50 on fleabay !Beats the dealer price of £55. What a performance though just to get the rear washer going again. Having to get a full wiper arm because the washer jets are in the cap and it cant be bought seperately, must be the worst design on a vehicle that they could come up with.

Totally agree. The cap should be available separately for about £7, I reckon!

Just be thankful you didn't need a new wiper motor.

Absolutely the cap should be available as a separate item. Having just replaced mine, on the up side at least the jets were correctly adjusted out of the box!! Drives:
2010 FFRR TdV8 Vogue - Stornoway Grey
2010 FFRR TdV8 Vogue SE - Zermatt Silver
1998 BMW E36 M3 GTII

Not ideal but you can do a reasonable fix using a Mini rear jet. You have to get the remains of the original out then the mini one will push in and function quite well. I have a mist spray nozzel on the actual arm which works brilliantly but not the best looking if you look hard. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone