Is this CV boot knackered?

[Mexico14]

It has grease on the outside - I'm thinking it shouldn't? Would this be covered under a citroen extended warranty?

[GiveMeABreak]

So this is an extract from the warranty booklet - although the drive shafts are not mentioned (nor the boots) you would have to call them to see if the the CV boots are covered. You should have a warranty contact number in your booklet that you can call to clarify whether they are or not.

EXCLUDED ITEMS
• Batteries (Please note Electric Vehicle Batteries are covered under the manufacturer warranty up to 8 years old or 100,000 miles).
• Ancillary drive belts
• Brake and clutch frictional material
• Bulbs and fuses
• LED lamps are covered providing at least 50% of the lighting has failed
• Exhaust systems and diesel particulate filters (catalytic converters are covered against internal failure only and not accidental damage, corrosion or damage resulting from the use of incorrect fuel).
• Wheels and tyres
• Wheel alignment or any adjustments unless required as part of a component failure covered by the warranty.
• Wiper blades
• Water ingress including damage to covered components caused by water
• All serviceable items
• Recharging of the air conditioning unit (unless required as part of a valid repair)
• Electrical software update or reprogramming unless required due to the failure of a covered part.

Trim and bodywork including:
(a) Interior and exterior trim (including door hinges and check straps)
(b) Glass (heater elements are covered)
(c) Seat covers and cushions
(d) Weather strips and body seals
(e) Paintwork

WHAT YOUR CITROËN EXTENDED & RENEWAL WARRANTY DOES NOT COVER
• Excessive or unreasonable diagnostic time or any diagnostic time which doesn’t result in a valid claim (Reasonable diagnostic costs for valid claims will be covered).
• The gradual reduction in operating performance (wear and tear consistent with the age and mileage of the covered vehicle).
• All adjustments and alignments.
• Any loss, damage or failure which occurs while the vehicle is outside the geographical territories detailed in this handbook.
• Mechanical failure caused by faults which, in the opinion of a qualified engineer appointed by Citroën Warranty Administration, existed before the warranty commenced.
• Vehicles where the speedometer/odometer is altered, disconnected or interfered with in any way, unless it is faulty.
• Faulty speedometers/odometers may be repaired or replaced, but only with our prior authorisation.
• Service/maintenance operations.
• Component failure resulting from accident damage, misuse or neglect.
• Items which do not form part of the manufacturer’s original specification for the vehicle.
• Faults resulting from the use of fuel which is either contaminated or inappropriate for the vehicle.

[TZDunnit]

If its showing signs of loosing grease then yes it's knackered and an mot failure.
I expect it would be classed as wear and tear unless your warranty states otherwise.

[Stewart(oily)]

I see no visible splits and no sign of grease leaking (it flies out and covers everything in its path) That CV boot will pass an MOT and is serviceable.