These pumps have a super high failure rate. Most croak before 5 years in service the rest soon after.
Failures are:
Pump Seals at reservoir leaking - the fluid drains down to the lowest pump mounting point level. (leaves light blue stains everywhere).
Pump failure - Nothing happens or leaks through pump body.
Lines cracking due to age and diluted washer fluid too high of freezing point (Like 32 degrees F).

This repair is an easy DIY (2 out of 10) with only simple hand tools. Note, twist off the pumps and hoses - do not force them otherwise you will break more parts as these items get real brittle with age. A little brake caliper or silicone grease will help long term if any of the fitting points are questionable. Most go on dry with no issues and a long life.

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2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green