The windshield cleaning system is one of the key components of any car, on which visibility and, consequently, driving safety directly depend. When the wiper motor fails, you have to either repair it or install a new one. Many owners of the "ninety-ninth" wonder how to remove the wiper motor on a VAZ 21099 on their own. The operation is not complicated, but requires care. Below we will detail the procedure for removing the unit and compare it with similar work on the VAZ 2107 and VAZ 2106 models.

Reasons for wiper motor malfunction

On the VAZ 21099, wiper failure is usually caused by the following factors:
  • wear of graphite brushes in the electric motor;
  • moisture penetration inside the device housing;
  • wear of the gearbox gears;
  • a blown fuse or a break in the wiring.
If checking the electrical circuit shows no problems, then the cause lies directly in the motor, and it should be removed.

What to prepare before starting work

To remove the wiper motor from the VAZ 21099, you will need:
  • wrenches 10 and 13;
  • screwdrivers — Phillips and flathead;
  • pliers;
  • work gloves.
It is better to work in a garage or on a flat area, having previously disconnected the battery.

Step-by-step process of removing the wiper motor on the VAZ 21099

  1. De-energize the vehicle's electrical system.
    Disconnect the negative terminal from the battery — this will eliminate the risk of a short circuit.
  2. Remove the wiper arms.
    Using a 10 wrench, loosen the nuts holding the arms and carefully pull them off the splines.
  3. Remove the cowl panel.
    The plastic trim located under the windshield hides the wiper mechanism. Unscrew its fasteners and set it aside.
  4. Disconnect the power connector.
    Find the wires going to the motor and disconnect the contact block.
  5. Loosen the mounting bolts.
    Using a 10 wrench, unscrew the bolts securing the linkage and motor to the body.
  6. Remove the motor together with the linkage.
    Carefully take the assembly out of the engine compartment.
  7. Separate the motor and linkage.
    If you need to replace only the motor, unscrew it from the linkage.
Then the new motor is installed in the reverse order.

Nuances for other models

Owners of classic models often wonder how different the process is on other cars in the family.
  • VAZ 2107.
    To remove the wiper motor, you will also need to remove the cowl panel. The linkage here is similar in design to the 21099, so the sequence of operations is almost the same.
  • VAZ 2106.
    On this model, the motor is located under the hood, and access to it is easier. However, you will still have to remove the arms and unscrew the linkage fasteners. Overall, the work takes less time than on the 21099 or 2107.
So, if you have figured out how to remove the wiper motor on a VAZ 21099, then a similar task on the "seven" or "six" will not cause difficulties.

Installation recommendations

  • Before installing a new motor, lubricate the pivot joints of the linkage.
  • Inspect the seals — they must be intact to prevent water from getting inside.
  • After assembly, connect the battery and check the wiper operation in all speed modes.
Now you know how to remove the wiper motor on a VAZ 21099 with your own hands. A basic set of tools is enough for this operation, and the whole process takes about an hour. On the VAZ 2107 and VAZ 2106 models, the algorithm of actions is almost identical, so the recommendations given here will also be useful for owners of these cars. Timely replacement of the wiper motor guarantees stable operation of the system and your safety in any weather.