Having problems with your Volkswagen Cabrio ?

How to replace the maf sensor on 1999 vw cabrio

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

Have you noticed reduced engine performance or fuel \015\012efficiency on your VW? If so, then your mass air flow sensor may be\015\012 clogged or dirty. To restore your VW to proper working order, it is \015\012recommended that you simply replace your dirty MAF sensor with a new \015\012one.

How to Replace a Mass Air Flow Sensor (Air Mass Meter):
1. Air Mass Meter

1. Combination Wrench Set
2. Screwdriver - $23.28
3. 3/8 in. Drive Ratchet
4. Socket Set

Step 1 Open your hood and locate your air intake system.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.
o Tip: Always make sure the struts on the hood can fully support the weight of the hood so that it does not close on you while working. The use of a hood prop can securely hold it in place.

Step 2 Loosen the hose clamps that tighten your air filter to the air intake boot in front of the mass air flow sensor/air mass meter.

Step 3 Loosen the hose clamps that hold the mass air flow sensor/air mass meter to the intake boot and to the engine. Remove the mass air flow sensor/air mass meter for inspection.

Step 4 Inspect the mass air flow sensor/air mass meter wires in a direct light source. Verify dirty build up that would obstruct the engine computer’s reading of the air flow.

Step 5 Install the new mass air flow sensor/air mass meter unit.
o Tip: Make sure the new air flow sensor is installed in the same direction as the original. There is usually an arrow on the top of the air flow sensor that shows which way the air should flow into the engine.

Step 6 Tighten all hose clamps and check the entire air intake system for leaks.

If you'd like to try and save some money by cleaning your current \015\012sensor, here are the steps for doing so:\015\012\015\012\015\012\011\011\011\011\015\012
  1. \015\012\015\012\011\011\011\011\011\011\011Locate the air box. It should be in the upper right-hand \015\012corner of the engine compartment (right in front of the driver's seat). \015\012You should see a little stem of plastic and metal jutting out from the \015\012cylindrical air flow tube--that's the mass air flow sensor.
  2. \015\012
  3. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Remove the wiring connector from the MAF sensor by sliding a \015\012flathead screwdriver into the wiring release clip on the sensor. When \015\012the clip pops, pull the wiring apart from the sensor.
  4. \015\012
  5. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Use your screwdriver to unscrew the two screws connecting the\015\012 MAF sensor to the air flow tube. One is located above the sensor and \015\012one is underneath.
  6. \015\012
  7. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Gently pull the MAF sensor free from the engine.
  8. \015\012
  9. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Use a screwdriver to remove the screws holding together the \015\012exterior assembly of the VW mass air flow sensor.
  10. \015\012
  11. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Use your electrical contact cleaner to spray an ample amount \015\012over the entire interior of the MAF sensor. Take great care not to \015\012actually touch any of the internal wirings, as they are extremely \015\012sensitive.
  12. \015\012
  13. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Leave your sensor to dry for about an hour.
  14. \015\012
  15. \015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011\015\012\015\012\011\011\011\011\011\011\011\011Screw the exterior assembly onto the MAF sensor, and reattach\015\012 it to the air flow tube and wiring connector.

Hope this helped.
Repair Help & Product Troubleshooting for Volkswagen Cabrio

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