Do-it-yourself opel astra n hub repair

In detail: do-it-yourself Opel Astra n hub repair from a real master for the site my.housecope.com.

Front hub Opel Astra H - how to replace an assembly with a wheel bearing (1.4, 1.6, 1.8, LPG, CDTI, station wagon)

Image - Do-it-yourself Opel Astra n hub repair

In the Opel Astra H car, the front hub bearing is located directly in the front hub housing itself. This design is not collapsible, therefore, to replace the front hub bearing with the Opel Astra N, you just need to remove the old hub assembly and install a new one, without pressing out the bearing itself. Inside there is also a wheel rotation sensor, in the event of a malfunction of which the hub assembly also changes entirely.

The price of a complete part is significantly higher than that of a standard ball bearing. Opel Astra H is a car above average in class, therefore, a lot of money (2000-3000 rubles) is also taken for this type of repair in a car repair shop.

From the foregoing, the conclusion suggests itself - it is more expedient to replace the front hub with the Opel Astra H on your own, moreover, during the repair, you will not need special tools, as well as the professional skills of a car mechanic.

The first significant signs that the front hub bearing of the Opel Astra H has begun to malfunction is extraneous noise from the wheel. Additional signs: vibration in the cabin, grinding sound, sensor instability, heating, wheel play.
To check the hub bearing on the Opel Astra N, perform the following operations:

  1. First, the front wheel is hung out, on the side where the malfunctions (noise) are replaced;
  2. Next, we spin the wheel with our hands to make sure that the noise comes from it;
  3. The backlash and smoothness of rotation are immediately checked;
  4. If possible, measure the axial play with an indicator, the value should not exceed 0.05 mm;
  5. The heating of the hub part is checked immediately after the vehicle is stopped;
  6. Watch a selection of videos on diagnostics, as well as examples of the operation of a faulty bearing in the Opel Astra H 1.6-1.8 hub.
Video (click to play).

The wheel bearing hummed:

How to check the hub assembly:

Front wheel hub bearing diagnostics:

- Frequent overheating of the part due to insufficient lubrication;
- Ingress of dirt or moisture due to depressurization of the oil seals (seals);
- Not thrifty driving on irregularities on the road (holes, potholes, curbs);
- Expiration of the specified service life declared by the manufacturer.
- Defect or manufacturing defect of the unit.

The Opel Astra H wheel bearing assembly is a standard flange piece with a double-row angular contact closed ball bearing pressed inside. The complete assembly is attached to the steering knuckle as well as to the drive shaft. The images below show the assembly layout, with a list of optional parts and fasteners.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair

Replacing the Opel Astra H wheel bearing begins with preparatory measures. Park your car on a level area with good lighting. Then we put wheel chocks under the rear wheels, remove the handbrake and engage in neutral. For repairs, you will need a standard set of spanners or ratchet sockets, as well as a jack. For the safety of the work, first loosen the wheel bolts and the drive shaft locknut, and only then raise the car with a jack.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair
  1. After removing the wheel and unscrewing the hub lock nut, remove the brake caliper. To begin with, bend the retaining friction pad (spring) to the side with a screwdriver. Next, remove the caps of the rear mounting bolts.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair
  1. We unscrew the rear mounting bolts.After that, removing the caliper, we hang it to the shock absorber spring.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair
  1. Now we unscrew the brake disc with the TORX T30 head.
  2. After removing the brake disc, take a hammer and carefully knock out the drive shaft.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair
  1. We unscrew the bolted connection at the ball joint. Then we insert the screwdriver into the groove and hammer in with a hammer to unclench the fasteners.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair
  1. Carefully hammer the suspension arm with a hammer to dislodge the ball end from the steering knuckle.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair
  1. We turn the fist to gain access to the rear hub flange bolts to unscrew them.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair
  1. After that, it is necessary to disconnect the ABS sensor wire in order to remove and replace the Opel Astra N. wheel bearing.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair

Before changing the wheel bearing, it is necessary to check the condition of the drive shaft and steering knuckle splines, as well as the tightness of the CV joint. Replacing the front hub bearing on the Opel Astra H is performed according to the instructions.

  1. We prepare a new spare part for installation by removing the plastic cover. Then we point it to the mounting holes and screw it to the steering knuckle.
  2. We connect the ABS sensor wire.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair
  1. Next, insert the ball tip into the hole, screw it back to the fist, install the brake disc with the caliper in reverse order.

Image - Do-it-yourself Opel Astra n hub repair

Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair Image - Do-it-yourself Opel Astra n hub repair
  1. At the end of the assembly, tighten the lock nut with a torque wrench. For the tightening torque, see the corresponding article on our website or the technical information below.
  2. Install the cotter pin, then screw the wheel back into place. This completes the replacement of the wheel bearing on the Opel Astra H car.

Image - Do-it-yourself Opel Astra n hub repair

The choice of a hub bearing for the Opel Astra N by number and manufacturer should be taken seriously, since the cost of the part is 4000-9000 rubles. High-tech hub assemblies with integrated double-row angular contact wheel bearing and ABS (magnetic ring) sensor are best purchased from renowned bearing manufacturers. For example, the wheel bearing for the Opel Astra N from SKF (SKF), according to reviews, is one of the best among all analogues (price around 7,000 rubles)... Original spare parts from General Motors are also famous for their reliability, but the price of a product of this particular brand exceeds 16,000 rubles.

Read also:  DIY electric scooter repair

Below is a summary table with brief information on the recommended replacement ball bearings (price, article, completeness). The original wheel bearing number is 1603254 (Opel).

Hub bearings wear out rather quickly, because the quality of roads in Russia is far from the best quality. The first symptom of a worn bearing is a characteristic hum, which is more clearly audible at speeds over 60 km. At one o'clock. In this case, it is recommended to replace the bearings as quickly as possible.

It is better to change bearings in pairs, since if the first one buzzes, then the second one will soon also start, because the chassis wears out approximately evenly.