No, the crank sensor set up changed from 98 to 99, and on through 2004.
The mounts, pulleys and such also changed, so you'll need to stick to just those years.
10/40
Engine oil is 10w 40
40
synthetic !0w-40
30- 32 psi engine running, 36-40 psi key on engine off.
2000/50 = 40 40 50s can go into 2000.
it probably needs an O2 sensor they range from about 40-90 dollars
if the jetta is the 1.8 gl engine then it will require 5 litres of 10w/40 semi synthetic engine oil.
40
2000 - 40% = 60% of 2000 = 2000*60/100 = 1200
5W/30 or if you have in excess of 100,00 miles you could use 5W/40
This is only an educated guess, however 40 days and 40 nights of rain will damage most things