Passat L4-1984cc 2.0L DOHC (1991)
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Inspect six soldered joints on circuit board (arrow)
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If loose, resolder all six connections.
CAUTION
Use care not to solder across adjacent terminals of voltage stabilizer on circuit board.
Soldering Tips
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Use only a 15 Watt soldering iron with a nickel plated pencil tip.
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Use thin rosin-core or multi-core solder. DO NOT use acid core solder as this is corrosive.
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Use a desoldering wick to remove old solder from the connections to the voltage stabilizer by spreading the webbing over the three connections.
Place the soldering iron tip over the webbing and the braid will absorb the old solder as it melts.
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Be careful not to overheat the circuit board.