check behind the shifter lever and remove tray.
The speed sensor on a 98 Jetta is located near the brake setup. It is on the passenger wheel area mounted to a bracket.
Fuse box on 98 Jetta is located under steering wheel above pedals.
its on the top of the bellhowsing and on the differential case
serpentine belt diagram for 98 jetta tdi
On back side of motor under the intake manifold
It has one, It is underneath the center table in between the front seat
on 98 demio , it is under bonnet, top right, small grey box with lid marked 'diagnostics'
How do I check transmition fluid n 98 vw jetta vr6 2.8
no
Divers side between the door and steering wheel (left of steering column), its covered.http://www.nology.com/pdfandzipfiles/obdiiconnectorlocations.pdf
data port is just under the dash on the drivers side toward the center console.