If it the the newer body style the flasher is built in to the emergency flasher switch. Replace that and it is fixed. If it is the A3 body style it will be a relay in the relay box. Any VW parts person can tell you the exact location in the relay box.
No it is under the dash normally located near the fuse panel.
I had the same problem in my 1999 Mercury Cougar, I replaced the flasher located in the blinker assembly. It was very simple to do. Flasher cost about $10
how to replace the flasher relay on a hyundai accent 1999
every 60,000 miles.
Could be a bad turn signal flasher - perhaps located in or near fuse box
the flasher fuse is in the fuse block look in your owners manual under fuses
replace spark plugs @wires
Remove the flasher retaining bolts from the headlight assembly bracket. Remove the wiring harness. Reverse the process to install the new flasher.
Blinker - 1999 is rated/received certificates of: Belgium:KT Netherlands:AL
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What kind of car 1999 mercury mountaineer
Usually a bad turn signal flasher Check to make sure all bulbs are working I had this problem. Had to replace the hazard warning light switch in the dash. 1999 Passat 1.9TDi UK spec.