How to change the headlight hydrocorrector on a Grant

Step-by-step instructions for replacing the headlight adjuster on a Lada Granta

On my car Lada Grante, the headlights began to shine too low.
At first I raised the beam of light by adjusting the hydraulic corrector, but after a while the headlights dropped again. The adjustment reached the maximum level, but the light fell low. This question comes up among owners of cars equipped with hydraulic headlight leveling. To replace the headlight hydraulic corrector on a Lada Granta car, you will need a wrench (head 21). Algorithm of actions:

The adjustment knob on the dashboard is removed. There is a nut behind it that can be unscrewed with a knob. Afterwards you can pull out the main cylinder.
Under the hood, the clamps holding the hydraulic mechanisms are pressed out. To pull them out, you need to turn the cylinders counterclockwise.
The connecting tubes are secured with clamps having screw clamps. They need to be unfastened and brought into the car interior using the hole previously hidden by the seal.

After dismantling the old device, a replacement should be installed.

Installation of both hydraulic and electrical correctors is carried out through the vehicle interior. First, the device is pulled through the hole in the shield, then mounted in its usual place.

To electric

A more reliable and attractive electric headlight corrector on the Lada Granta is installed as follows:

Before installing the headlight electric corrector, it is necessary to dismantle the failed device - first by disconnecting the main cylinder, then by disconnecting the hydraulics and leading the pipes through the passenger compartment.
The negative terminal is disconnected from the battery.
Electrical mechanisms are located where the working cylinders were installed. If the O-rings are worn out, they are replaced.
The negative wire is connected to ground, the positive wire is connected to terminal 20.
The wiring runs in the space previously occupied by connecting pipes.

The corrector lever is dismantled when installing the element.

Having finished with the wiring, you need to return the terminal to negative. The performance of the new system must be tested.

To hydraulic

If the owner is satisfied with the hydraulics, then replacing the headlight hydraulic corrector on the Grant is done in the same way:

the old system is dismantled, connecting pipes are removed;
new elements are installed in the same way in place of failed elements;
O-rings are checked;
Full testing is carried out.

Hydrocorrectors first appeared on classic rear-wheel drive VAZs. More modern cars from the Volzhsky plant are also equipped with hydraulic regulators for the direction of the light beam. Although at one time they began to install more reliable electrical correctors. They perform the same functions, but operate thanks to electric motors powered from the on-board network.

Replacing the hydraulic corrector with a similar device

In order to replace the hydraulic corrector for headlights on a VAZ 2110, you need to stock up on a wrench with a 21 and half hour head. The actions are performed in this order:

The adjustment knob is removed (you need to pull it) on the dashboard. Under it there will be a nut 21, which should be unscrewed. This releases the master cylinder and can be removed.
We open the hood and find headlights and working hydraulic mechanisms installed on top. On each one you need to release the latches, turn the cylinders counterclockwise and remove them.
Disconnect the tubes (most often they are secured with clamps with a screw clamp). Now all the elements of the system located under the hood need to be brought into the cabin through an opening closed with a pliable seal.
Install all elements of the new Lada Granta hydrocorrector. The sequence is reversed.

What to do

There is a simple way to return the headlights to their normal state. You need to remove the hydraulic corrector by rotating it counterclockwise.

The work of the Lada Granta proofreader is as follows. When you turn the regulator inside the car, the rod extends from the cylinder and raises the headlight.

When the fluid pressure decreases, the rod is completely immersed inside the cylinder and becomes shorter. The headlights go down and the regulator no longer works.

I suggest increasing the length of the rod with a plastic tube. To do this, you can use a dowel-nail for construction work.

8 – diameter, 80 – length. The part with the cap is used. First, we measure 15 mm from the dowel-nail, which were determined through experiments.

This will maintain the factory settings. If the length is longer, the setting will be disrupted. Do not cut it off right away to make it easier to put it on the hydraulic corrector rod. The tube fits tightly onto the rod, so to make work easier, heat it with a lighter for 2 seconds.

I melted the edges with a lighter flame so that they were not sharp. The stem mates with the cup, and this rounded shape suits it better. Now you can install it in place. Similar to withdrawal. There is no need to press the latch; insert and rotate clockwise.

The same procedure must be carried out with another headlight. There is also no need to remove anything; you can easily get to the hydraulic corrector. After lengthening the corrector rods, you need to adjust the headlights.

CHECKING POWER WITH A MULTIMETER

If you have not previously encountered diagnostics of electrical appliances, we recommend that you read the instructions for using a multimeter. The first thing you need to check is whether there is a constant “+” at the gearmotor connector and whether there is a “ground” on it. Also, in direct current measurement mode (DCV), connect the positive probe to the signal wire, and the negative probe to the ground pin.

When turned off, the voltage is minimal, while when the switch is rotated it should be from 3 to 10 V. Before checking, you must turn on the low beam headlights.

If “–” or “+” does not come into the chip, the same operation should be carried out with the connector connected to the control unit in the car interior. If power leaves the ECU chip, but does not reach the connector, then the problem is a broken wiring. If there is no power to the gearmotor at the connector, you should check the “ground” and “+” of the control unit itself. A situation where power comes to the unit, but the ECU does not react in any way to changing the position of the switch, indicates a malfunction inside the headlight range control unit.

It is not recommended to directly apply battery voltage to the terminals of the gear motor for a long time in order to check its performance. To correctly diagnose the electric drive, you should include a 10 kOhm trimmer resistor in the circuit.

Adjustment

There are 2 types of settings:

Plastic white nut - up, down.

You need to rotate it through the hole shown in the photo.

To do this, you will need a long hex wrench with a ball on the end, since the hole does not coincide slightly with the location of the nut. Therefore, the ball will help turn the key at a certain angle. You can use a hexagon with a small cardan, size H6.

We insert it into the indicated hole, get into the nut and rotate it. First, adjust the low beam of the left headlight. It is recommended to do this on the road with an oncoming car. The beam of light must be raised up so that it does not hit the windshield of an oncoming car. Otherwise, your headlights will blind the driver.

The light should fall approximately at the level of the bumper with a small margin in height. If there are passengers in the rear seats, the car will sit down and the beam of light will rise. For this you need a headroom.

After adjusting the left headlight of the Lada Granta, park the car near the wall. Then adjust the height of the right headlight beam to the level of the left one, focusing on the edge of the light. This completes the adjustment, good luck to everyone on the roads! We look forward to your comments and opinions on this issue!

How to replace the headlight hydraulic corrector on a VAZ 2190?

Removal: 1) Removing the corrector is easy and difficult can arise only with pulling it out, this is all done as follows, first remove the cover of the mounting block by hand, which is attached to four latches (see photo 1), as soon as the cover is removed, you need to move will be to the working cylinders of the corrector (these are the ones that are located on the headlight) and both will have to be disconnected; they are disconnected by pressing the latch (there is a latch on each cylinder that secures them to the headlamp unit) and turning counterclockwise and then pulled out (see photo 2) , after which you need to move again to the salon and there you need to remove the headlight range control knob by pulling it (see.

2) The hydro-corrector of the headlights is removed by leading it into the car interior, that is, at the beginning, as shown in the small photo, the hose seal is brought out into the cabin (Indicated by a red arrow) and behind it the hoses with the working cylinders are brought out and thereby the headlight range control is removed from the car.

Installation: The new hydraulic headlight corrector is installed in exactly the same way; it is inserted through the passenger compartment and thereby brought out into the engine compartment, where the working cylinders of the corrector are connected to the headlight unit, while the hole in the engine shield is closed with a hose seal and the other end (which is in interior) is inserted into the hole and then tightened with a nut, while the headlight range control knob and the mounting block cover are installed in their place.

Additional video clip: You can clearly see the process of replacing the headlight range control in the video below, using the example of a car such as a VAZ 2110; the replacement procedure is not particularly different on a Lada Grant or on dozens.

Is it possible to repair the Lada Granta hydraulic corrector?

The direction of the light flux changes when the car trunk is occupied by any cargo. The sag of the rear end causes the headlights to point upward, causing oncoming drivers to be dazzled and the road surface to be poorly illuminated. To change the direction of the light beam, you do not have to get out of the car; this is done by a hydraulic regulator or electric corrector.

Hydrocorrectors for headlights were introduced on rear-wheel drive cars from VAZ of the classic type. Today, instead of hydraulic systems, car enthusiasts install Granta electric headlight correctors, which allows them not to worry about the integrity and tightness of the connecting tubes. However, the manufacturer often equips the car with hydraulics.

Manufacturers of correctors for the Lada Granta did not provide for the possibility of restoring the device. It is assumed that the driver should make a change. However, it is possible to repair the hydraulic corrector yourself, although it eliminates the problem only for a while. It is impossible to achieve full functionality, however, the lampshades are installed in the working position and secured in it.

The choice between an electric corrector or a hydraulic regulator is based on several parameters:

cost – hydraulics will cost much less than an electric corrector;
operating conditions - when the car often finds itself in situations with sudden temperature changes, it is worth paying more, but getting a reliable adjustment system;
car model - not all cars allow you to connect an electric corrector, however, it is possible to install one on a Lada.

Step by Step Actions

The first step is to assess the general condition and find the cause of the problem. If the tubes are damaged - cracks or breaks are noticeable, the connecting elements must be replaced. When the crack is located near the corrector, the tube is bitten off; if the damage site is not nearby, the entire length is replaced. Next, the system is pumped with antifreeze:

The corrector plug is removed.
The actuator rod extends.
Using a syringe, antifreeze is introduced into the system, the entry of air is strictly excluded.
Instead of a plug, a self-tapping screw without a sharp part is installed.

If there is no adjustment because the rod is damaged or broken off, extension is carried out.

If one or both headlights stop responding to turns of the adjustment knob, you need to think that the hydraulic device has failed. There may be several reasons:

jamming of the working cylinder (one lamp does not turn);
depressurization of the system due to failure of sealing elements;
depressurization due to damage to connecting pipes.

In the last two cases, both reflectors do not rotate. In most cases, they “fall”, that is, they occupy the lowest position.

Manufacturers of headlight correctors for the VAZ 2114 are very similar to the headlight correctors for the Lada Grant; they also did not provide for the possibility of repairing the closed hydraulic system itself, as well as its individual elements. In this case, you can only replace the device. Attempts to repair the hydraulic corrector still take place.

Adjusting headlights on a Lada Granta with your own hands: video and photos

Lada Granta has become one of the most affordable cars of our time. This is what made him so popular. The situation is also improved by the fact that it has good technical characteristics, including high-quality optics, regardless of configuration (standard, standard, luxury).

Checking and adjusting Lada Granta headlights

Let's talk about adjusting the headlights, which is similar to how adjustments are made on other car models. This procedure must be carried out both on a completely new car and after driving on a rough road.

If your low beam headlights stop working, the culprit may be a relay or fuse. But if, on the contrary, the low beam does not turn off, then most likely your relay is stuck.

To make adjustments, we will need to acquire a Phillips-type screwdriver, a standard tool, as well as a spare tire and a full tank of gasoline (if possible). The last points are needed to ensure that the vehicle is fully loaded.

The car must be placed on a flat, completely horizontal surface.
Checking the vehicle's leveling
After this, the car starts and idles. To fix its position, the handbrake is depressed. If the hand brake is not tightened or does not work, you can install a wheel chock under the rear wheels.
Check the tire pressure. If it does not correspond to the norm, then pump them up or deflate them.
Next, a special wall is installed in front of the machine, the height of which reaches two meters, and the distance to it is about three meters.
In principle, you can make the wall yourself from chipboard or plywood, as well as other available materials. Or the car is placed in front of a flat wall, onto which markings are applied. Adjustment diagram for adjusting headlights
A load weighing up to seventy kilograms is placed on the driver's seat, which is necessary to align the line of the headlights. You can ask your partner to drive.
In order to remove vibrations of the body, as well as its shock absorbers, the car gently rocks.
Next, we move the Lada Granta hydrocorrector light control to the “one person” position.
This position corresponds to the load in the car on the driver’s seat. Hydrocorrector in position “0”
We turn on the low beam, studying the output and the actual deviation of the headlight beams on the car.

Headlight adjustment (adjustment dials)

The thumbwheel is used for adjustment in the horizontal plane, and the hex bolt adjusts the position of the light beam vertically. If possible, the beams should correspond as closely as possible to points on the manufactured wall, both in the vertical and horizontal planes.

In the photo there are two headlight adjustment dials

The most difficult to reach vertical adjustment bolt

It is considered that the optics are correctly adjusted when the rays go directly to the places of the required projections, previously applied to the wall, according to the operating rules of the machine.

Now a so-called test run is being carried out. This must be done in order to secure the headlight adjustment, and also to check whether the work was done correctly. Make sure that the beams of light do not blind drivers coming towards you.

conclusions

As you can see, the procedure for adjusting the headlights on a Lada Granta with your own hands is not at all complicated. The whole procedure, if you have a ready-made “wall”, will take no more than twenty minutes.

The right headlight literally “fell” down, it’s dangerous to drive like that

As a rule, optics do not have a clear operating time. The duration of use is not limited in any way, since everything depends on the road conditions, as well as the style in which the driver drives the car.

But, even with normal output data, optics rarely withstand more than one hundred thousand kilometers, since its surface is covered with an abundance of small scratches. As we have already said, such scratches can be removed with polishes or a more significant abrasive, but the resources for such restoration are not unlimited.

Give some attention and power to your halogen headlight. The fact is that deviations up or down can lead to the fact that the adjustment of the headlights on the Lada Granta cannot be performed efficiently.

In addition, each batch of cars may have its own characteristics of setting up the light beam, which you can find out about by simply looking at the operating instructions.

What does a hydraulic corrector consist of and how does it work?

The design of the adjustment device is non-separable and simple; the hydrocorrector of the Lada Granta headlights consists of the following elements:

the main cylinder located under the dashboard;
a working cylinder located on each headlamp;
reflector regulating mechanisms;
connecting components.

A knob for controlling modes is displayed on the instrument panel, helping the owner change the pressure in the master cylinder. A change in pressure causes the reflector to rotate, and therefore the direction of the light flux.

The change in pressure in the main cylinder is transmitted to the working elements, causing the pistons to rotate, changing the angle of inclination of the reflector. Electrical correctors operate using on-board electricity and therefore do not depend on the ambient temperature. More reliable devices of this type are more expensive.

The hydraulic device, thanks to which you can adjust the angle of the light beam from the interior, consists of the following main parts:

master cylinder located under the dashboard;
working cylinders, one on each headlamp;
tubes connecting the above devices.

The hydraulic corrector system is closed and at the same time sealed (normal). The changed pressure is transmitted through the tubes to the working cylinders. This leads to a change in the position of the pistons and the rods connected to them. They use a special lever mechanism to influence the angle of rotation of the reflector. This is the operating principle of the hydraulic headlight adjuster for the Lada Granta.

The electric corrector differs in that the desired position of the lampshades is ensured by mechanisms powered by on-board electricity. Their operation is not affected by changes in ambient temperature, so they are much more reliable than hydraulic devices. Their only “minus” is the cost, which is several times higher.

Replacing a hydraulic corrector with an electric one

If you still want to install a more reliable electrical device, there should be no difficulties with installation - everything will fit without problems. What should be done:

Remove the used hydraulic device as described above.
Disconnect the negative terminal from the battery.
Electrical mechanisms are installed in the places where the working cylinders stood. It's a good idea to replace the O-rings.
The positive wire is connected to terminal “20”, the negative wire is connected to ground.
The wiring is attached where the connecting tubes were, or is wound to a common electrical wiring harness.
All that remains is to put the negative terminal on the battery and check how the electric headlight range control works.

That's it, quick and easy. And your Lada Granta not only has a brand new headlight level control, but also works. So now you can load the trunk to capacity - there will be no problems adjusting the angle of rotation of the lampshade.

Author: Lagoda Vladislav Fedorovich

Higher education: secondary specialized. Specialty: Auto mechanic. Good knowledge of the design of foreign-made passenger cars. Work skills: replacing the timing belt of the cylinder head, chassis wheel alignment and maintenance. Repair…

1 comment

Vitaly says:
Thanks to the author, it’s very interesting and informative, I’ll look at something with one headlight on Bedakuril in the near future.