I have a 1998 golf mk4 1.9 tdi. the electrics seem to work when they wont to! and are doing funny things! for example my headlights stop working! the work the next day ? when i start my car the back windscreen wiper turns on and stops were it feels like it? does any1 have any soloutions ?

The headlight switch is most likely the culprit. It operates a relay that actually turns on the headlights Look in the fuse box for a burned out fuse. If it is not burned then suspect the switch

Time to have a mechanic diagnose it...judging by your description...do you race the vehicle??? is it well Maintained??? Did you buy it new??? have you had the timing belt, and tensioners replaced??? If the timing belt gave way, and there were no funny noises, that means your car has a "non interference" engine, which is a very good thing...find a mechanic that you, or some of your friends trust, and let him/her take a look at it...you might need to leave it for a while...good luck...

Fusible link between battery and alternator may be bad .

1993-2005 Volkswagen Jetta, Golf, GTI, Cabrio (A3-A4) Hatchback & Sedan Workshop Repair Service Manual - 350MB PDF

1993 2005 Volkswagen Jetta Golf GTI Cabrio A3 A4 Hatchback Sedan...

This is a COMPLETE Service and Repair Manual for your 1993 1994 1955 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 VW Jetta, Golf, GTI, Cabrio (1.8L turbo, 1.9L TDI and PD diesel 2.0L gasoline, 2.8 LVR6) (A3, A4 Platform) Hatchback & Sedan. It covers every single detail. All models, and all engines are included.

This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure. This manual can be viewed on any computer, as well as zoomed and printed. All repair procedures are covered A-Z. This manual for VW Jetta, Golf, GTI, Cabrio makes any repair job easy to do with very easy to follow step-by-step instructions & pictures on all areas of repair.

1993 1994 1955 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 VW Jetta, Golf, GTI, Cabrio (1.8L turbo, 1.9L TDI and PD diesel 2.0L gasoline, 2.8 LVR6) (A3, A4 Platform) Hatchback & Sedan
===========
Format: PDF
System: All Versions of Windows, Mac, iOS, BB, Android, etc..
Requirements: PDF Reader.
Printable: Yes

TABLE OF CONTENT (example)

GENERAL INFORMATION *

ENGINE *
engine mechanical
engine lubrication system
engine cooling system
engine control system
fuel system
exhaust system

TRANSMISSION/TRANSAXLE *
clutch
manual transaxle
automatic transaxle

DRIVELINE/AXLE *
front axle
rear axle

SUSPENSION *
front suspension
rear suspension
road wheels & tyres

BRAKES *
brake system
parking brake system
brake control system

STEERING *
power steering system
steering system

RESTRAINTS *
seat belts
supplemental restraint system (srs)

BODY *
body, lock & security system
glasses, window system & mirrors
roof
exterior & Interior
Instrumental panel
seat

AIR CONDITIONER *
air conditioner system

ELECTRICAL *
wiring diagrams
starting & charging system
lighting system
driver information system
wiper, washer & horn
body control system
lan system
audio visual, navigation & telephone system
auto cruise control system
power supply, ground & circuit elements

MAINTENANCE *
maintenance

INDEX *
alphabetical Index

1993 1994 1955 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 VW Jetta, Golf, GTI, Cabrio (1.8L turbo, 1.9L TDI and PD diesel 2.0L gasoline, 2.8 LVR6) (A3, A4 Platform) Hatchback & Sedan

Most likely a bad washer fluid pump.

change the turbo boost valve

check to see if your brake lights are working.usually the stop light switch fails and is the cause.but before buying a new one check the stop light fuse.its a common problem with a simple fix.hope this helps.

check rear lamps, sounds like bad earth (brown cable) to the lamps.

I have a 97 TJ and the headlights wouldn't come on but the parking lights would. Funny thing was that if I pulled the brights to flash someone, the brights would work. I took out the old headlight switch ($26 at Checker) and they work again. When I pulled the switch there was one connector that seemed to be corroded. Hope this helps

Well, there are some hundreds reasons why the engine can stop. Common ones are:
Dirty fuel filters, problems with electronic distribution, spark plugs to be changed, broken fuel pump, battery contact not in place, blown head gasket, rarely also a problem with anti-theft alarm motor lock can cause same thing.
Generally, if the car motor stopped immediately, with no additional symptoms is likely a problem with distribution ( no spark).
If you have experience in servicing your car you should start from checking if there is spark, and if petrol is being pumped regularly.
Best thing to do is always having it checked by a mechanic.