Took off water pump...what else to replace since im in there?
 

The water pump on my 2002 X5 4.4 started to fail, so I took it off today. I noticed old oil buildup all over the front engine (probably from the valve cover gaskets). Since I already have a lot of the cooling system off, what else can be replaced (maintenance)?

I will be re-using the thermostat and radiator hoses.

I was thinking about:
-water pump and gaskets
-fan clutch
-valve cover gaskets
-valley pan (maybe)?

Any other suggestions? Thanks

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check your thermostat.

and be careful of the large adn small metal coolant lines that run to back of engine. Do not dislodge them. use plenty of lube on the o-rings of the new coolant pump.

maybe throw a can of engine degreaser in there, so you can clean up the area dn then know what you're working with for leaks in the future...

I would have replaced the hoses you had to remove to replace the pump.

Yeah, fan clutch too. Not sure if the water pump pulley is separate and made of plastic like on the M54, I'd look at that carefully for cracks.

I'd do the valve cover gaskets as well while in there.

Check the expansion tank for signs of leakage or brittle plastic.

On a thirteen year old vehicle, I'd be replacing every plastic and rubber component of the cooling system if they hadn't been done before. Go ahead and do the thermostat too - it's cheap insurance. Examine all your vacuum lines and fittings as well.

2002 X5 3.0 291,600 miles
2014 428i 13,000 miles

2004 325i sold at 123,600 miles
2001 525i sold at 66,000 miles

I re-used those two metal coolant pipes and had leaks a short while later when I did mine. You probably have to remove the intake to get access to the whole pipe, but I would suggest replacing those now. Replacing them on an M62 is not nearly as bad a job as the N62. Otherwise, you will have to remove your new water pump if/when they leak (as i did...). My pipes looked better than yours, but the metal was etched where the o-rings seal.

Definitely replace all the hoses you removed, plastic expansion tank, etc.

P.S. I wouldn't spray degreaser now - the runoff will get into the cooling jacket where the water pump is open and contaminate your coolant. If you do want to degrease, bolt the old pump back on first.

Check the belts and belt tensioners and radiator. If original might want to replace them.

^yes, this too. These engines run hot and the pulley bearings lead a rough life.