Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLKSWAGEN1984JETTA L4-1781CC 1.8L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSM/T - UPSHIFT LIGHT SWITCH AND SPRING-LOADED FINAL DRIVE
1984 Volkswagen Jetta L4-1781cc 1.8L SOHC
M/T - Upshift Light Switch and Spring-Loaded Final Drive
1984 Volkswagen Jetta L4-1781cc 1.8L SOHCSECTION M/T - Upshift Light Switch and Spring-Loaded Final Drive
84VW02
Applies To
Convertible, Jetta
Rabbit, Scirocco
Group
39
Subject
4-speed & 5-speed manual transmission 020
Part Identifier N/A
Key Points
^ Transmission switch for upshift light
^ Spring-loaded final drive flanges
A-089
Number
84-01
June 4, 1984
Vehicles with upshift indicator use a new transmission switch to activate upshift light and also the reverse lights..
Modified selector shaft is also used and is now retained with a peg bolt instead of retaining screw.

A - upshift/reverse light switch B - peg bolt to retain selector shaft

A - upshift/reverse light switch B - peg bolt to retain selector shaft


Note
Before removing selector shaft, remove peg bolt and upshift/reverse light switch.

Spring-loaded final drive flanges, repairing


- remove seal using support to avoid damaging sleeve

- crease sleeve in
- remove with pliers
Note
Always install new sleeve



Note
See Repair Manual Microfiche for other repair operations.
Applies To
Convertible, Jetta
Rabbit, Scirocco
Group
39
Subject
4-speed & 5-speed manual transmission 020
Part Identifier N/A
Key Points
^ Transmission switch for upshift light
^ Spring-loaded final drive flanges
A-089
Number
84-01
June 4, 1984
Vehicles with upshift indicator use a new transmission switch to activate upshift light and also the reverse lights..
Modified selector shaft is also used and is now retained with a peg bolt instead of retaining screw.
FIGURE 1 - 4-SPEED TRANSMISSION:
A - upshift/reverse light switch B - peg bolt to retain selector shaft
FIGURE 3 - 5-SPEED TRANSMISSION:
A - upshift/reverse light switch B - peg bolt to retain selector shaft
FIGURE 2 - 4-SPEED SELECTOR SHAFT:
FIGURE 4 - 5-SPEED SELECTOR SHAFT:
Note
Before removing selector shaft, remove peg bolt and upshift/reverse light switch.
Spring-loaded final drive flanges, repairing
FIGURE 5 - FINAL DRIVE FLANGE OIL SEAL, REMOVING:
FIGURE 6 - FINAL DRIVE FLANGE OIL SEAL, INSTALLING:
- remove seal using support to avoid damaging sleeve
FIGURE 7 - SLEEVE, REMOVING:
- crease sleeve in
- remove with pliers
Note
Always install new sleeve
FIGURE 8 - SLEEVE, INSTALLING:
FIGURE 9 - DIFFERENTIAL BEARING/INNER RACE, REMOVING:
FIGURE 10 - RING GEAR, REMOVING:
Note
See Repair Manual Microfiche for other repair operations.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.