OVERVIEW
Genuine VW/Audi 893-906-231 is an individual three-position flat-contact housing. At the confirmed applications below, it forms the original harness connection to the assigned dual thermo-switch. It provides the connector body for the separately specified contacts and wiring; the switch itself is a separate component.
Technical details and what is included
- Factory part number: 893-906-231 / 893906231.
- Connector layout: three contact positions.
- Quantity supplied: one individual bare housing.
- Contacts, repair wires, protective grommet and thermo-switch are separately specified.
Use the original part number and mating profile to identify the correct housing. Three positions alone do not make it interchangeable with every three-pin electrical connector. The catalog also lists four-position thermo-switch connections for other equipment or engine configurations, which require their separately assigned housing.
Common reasons to replace
- The original connector body is cracked or broken.
- The housing attachment feature is damaged and no longer holds the matching connection correctly.
- A contact-retention location is damaged during terminal service.
- A diagnosed harness repair requires replacement of the assigned housing.
Inspect the terminals, wiring and mating switch separately. A new housing does not repair corroded contacts, damaged wire ends or a failed thermo-switch. Cooling-fan symptoms can have several causes; follow the factory diagnostic procedure before selecting the components required for the repair.
Vehicle fitment
These applications require the original three-position dual-thermo-switch connection assigned this housing. Confirm the switch configuration and original connector before ordering.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen Passat | 1998 | 1.8L turbocharged gasoline inline-four; AEB | B5 sedan or wagon; front-wheel drive; Original factory transmission; assigned switch connection determines fitment | Original three-position dual-thermo-switch connection assigned 893906231. Verify the original housing, switch pin count, keying and terminal arrangement. Four-position switches use a different housing. One bare housing supplied; contacts, wires, grommet and thermo-switch are separate. |
| Volkswagen Passat | 1998 | 2.8L gasoline V6; AHA | B5 sedan or wagon; front-wheel drive; Original factory transmission; assigned switch connection determines fitment | Original three-position dual-thermo-switch connection assigned 893906231. Verify the original housing, switch pin count, keying and terminal arrangement. Four-position switches use a different housing. One bare housing supplied; contacts, wires, grommet and thermo-switch are separate. |
| Audi 100 | 1989 | 2.3L gasoline inline-five | C3 sedan; quattro; Original factory transmission; assigned switch connection determines fitment | Original three-position dual-thermo-switch connection assigned 893906231. Verify the original housing, switch pin count, keying and terminal arrangement. Four-position switches use a different housing. One bare housing supplied; contacts, wires, grommet and thermo-switch are separate. |
Installation and service guidance
Follow the factory electrical isolation and connector-repair procedure for the affected vehicle. Record the original contact positions and housing orientation before releasing the connector. Use the specified terminal-release tool rather than pulling locked contacts by their wires.
Inspect the terminal retention, contact condition and separately specified protective grommet. Renew damaged contacts, wire ends or protective components as required by the repair information. Fit only the prescribed terminal system in the new housing and verify correct seating and attachment to the matching thermo-switch.
Restore the original harness route without strain or contact with moving components. Complete the prescribed circuit checks and cooling-system functional verification after reassembly. Refer to the vehicle wiring diagram and factory service information for circuit identification and repair procedures.