Lada Largus starter repair and fault testing

A starter or starting device (PU), as it is sometimes called among motorists, is designed to start a car engine. After turning the key in the ignition switch, current is transferred from the battery to the control unit. The latter is activated, driving the motor.

Violation of the rules for using the mechanism leads to its rapid wear and damage. For example, keeping it in an active state for more than 15 seconds wears out the bendix teeth and increases the operating temperature on the rubbing surfaces.

The design of the starting device is quite complex, despite the intuitive operating principle. We do not recommend carrying out repairs without experience in servicing equipment.

Problems with the starter, ways to solve them on Lada Largus

It is customary to divide breakdowns into electrical and mechanical based on the nature of their origin.

Electrical

The most common type of failure. The section of electrical wiring from the steering column to the starter must be inspected.

Signs:

• Slow rotation of the rotor;
• The control unit does not respond when current is applied;
• The starter clicks but does not turn. Most likely there is an interturn short circuit, a broken wiring, or a faulty solenoid relay;
• Wear of armature, brushes.

To make diagnostics as productive as possible, rule out the following breakdowns. To do this you need to check:

• presence of charge in the battery;
• tightness of battery terminals;
• wiring integrity. First of all, we inspect the area from the steering column to the control panel, and then the remaining areas;
• serviceability of the ignition switch. Backlash, poor contact, and delays in turning are unacceptable.

Mechanical

A stationary crankshaft with a working starter is a sign of a malfunction of the overrunning clutch, pressure spring, wear of the retaining ring, or flywheel. A metallic grinding noise during rotation indicates wear on the flywheel teeth and possible breaks. If the starter does not start, then the reason is a faulty electrical part.

After starting the motor, the launcher continues to rotate:

• jamming of the spring, drive shaft;
• contact board sticking;
• wear of the solenoid relay;
• The bearing race is damaged.

DIY starter repair

The starter is a regular electric motor that requires periodic cleaning and lubrication. You should start with the solenoid relay, the cost of which is not high, and therefore you just need to replace it.

To repair the starter itself, it is necessary to disassemble it and necessarily replace the brushes, which are consumables.

The commutator on the armature can be easily cleaned using a soft material, such as an eraser, which will not damage the working surface but will remove dirt.

In case of malfunctions associated with the windings, the entire armature is replaced.

On starters used with Lada engines, special attention should be paid to the bushings on which the armature axis is supported. Worn bushings allow the axle to move freely, which leads to jamming of the electric motor.

It is also better to replace the Bendix with a new one.

The last stage is cleaning and lubricating the mechanism. After this, the starter can be assembled and installed back on the car.

Almost all starter parts are available for free sale, and with self-repair, restoring the electrical part of the car will be much cheaper than replacing it.

Originals, analogues, articles and prices

*check the price with your official representative at the time of purchase.

Common signs of unstable performance

• The control unit starts on the second or third attempt: the contact board of the traction relay burns out;
• The starter rotates with great effort: wear of the brushes and pressure spring;
• The drive shaft disengages due to some delay: wear of the bendix and flywheel teeth.

Where is the starter installed in a Lada Largus car?

As in many models of the Lada family, the control unit is located in the engine compartment, closer to the flywheel, at the end of the cylinder block wall.

Lada XRAY and Vesta

Remove the engine splash guard (instructions for Lada Vesta, XRAY).

For configurations with manual transmission: Unscrew 2 bolts (No. 1) and remove the clutch hydraulic cylinder (No. 2), without disconnecting it from the hydraulic actuator tube (No. 3). Hang the cylinder on the technological hook (head “13”).

For all configurations: Unscrew the nut (No. 1) and disconnect the terminal (No. 2) and the block with wires (No. 3) from the starter traction (retractor) relay (No. 4) (head “13”).

Remove 3 bolts (No. 1), remove the clutch hydraulic cylinder mounting bracket (No. 2) (for vehicles with manual transmission) and the starter (No. 3) (Torx E10).

Replacement and installation of starter Lada Largus

After carrying out comprehensive diagnostics and identifying the breakdown, we prepare consumables and tools for repairs. We use additional lighting if natural light is not enough.

• We place the car on an inspection hole, preferably a lifting mechanism, after squeezing the parking brake;
• Turn off the ignition, raise the hood, disconnect the terminals from the battery (key to “10”);
• We remove the casing of the electronic control unit (ECM) by first pressing out the plastic clips on the sides. For convenience, we use a flat-tip screwdriver;
• We unscrew the fastening of the expansion tank, move it to the side, do not disconnect the pipes;
• Disconnect the gearbox drive cables JR5, JH3, remove the cover, rods, and spacer bushing;
• We unscrew the two nuts - clamps, and remove the PU from its regular place.

The design of the Lada Largus allows you to remove the PU from under the bottom of the car, it is not at all necessary to remove it through the top.

This completes the dismantling. Next, the technician installs a new starter, having first made sure that there are no defects, cracks, or chips. However, not all car enthusiasts can afford to purchase a new PU. They prefer to restore the existing one.

The cost of a new starting device is from 6,500 rubles, depending on the brand. While repairs will cost 2–4 thousand rubles. The difference is obvious.

Algorithm for complete disassembly of the starter

Most often it is necessary to replace: brush holder, relay, drive.

We disassemble the mechanism into its component parts, wipe it dry, blow it out, and remove waste products. If necessary, use fine sandpaper.

• We check the armature winding for absence of charring;
• The surface of the shaft journal is free of scratches;
• We measure the resistance of the winding core with an ohmmeter;
• We check the soldering of the winding on the lamellas.

We complete the assembly, install it in its original place, and start the engine for testing.

What can you do before removing the starter?

If, when trying to start the Lada Largus engine, retractor clicks appear from time to time, then there is an option that will help the starter last another 20-30 thousand kilometers.

To do this you need to do the following:

1. Turn the wheels to the left until they stop.
2. Remove the negative battery terminal.
3. Take a ratchet with a good extension and a long 10 and 8 socket.
4. Stretch both positive terminals on the starter. To do this, they must first be released and then tightened.

In the case of a weak contact, this helps, but if the “nickels” of the starter are pretty burnt, then such a broach will no longer help, the starter needs appropriate repairs.

Recommendations for starter maintenance

Adhere to the technical inspection schedules established by the manufacturer - every 15,000 km. Buy original parts and components at official points of sale.

Use the services of certified workshops for diagnostics and repairs. Remember that unprofessional intervention in the operation of the car is more likely to harm than help.

Don't skimp on consumables. Check the catalog numbers with the actual data specified in the instruction manual.

Keep the control unit active while starting the engine for no longer than 15 seconds, then 30 seconds. break. After starting the engine, release the key from the ignition switch as soon as possible. Excessive retention eats up the teeth on the drive shaft and flywheel.

How to choose a starter for Lada Largus

First of all, you need to decide on the engine. Different types of starting devices are used for different engines of this car. It would be a good idea to study the articles.

Table of catalog numbers:

In the case of a Lada engine, it is worth buying an original starter. Its price is quite reasonable and affordable for the average car owner.

Owners of cars with a Renault engine may have problems with the choice. A starter for such a model is quite expensive, so in this case it is worth paying attention to analogues from the following manufacturers:

• Valeo;
• Volt;
• Tesla Technics;
• Magneti Marelli.

Valeo is the best alternative. This manufacturer is positioned as a supplier of spare parts and electronics for Renault conveyors, and therefore you don’t have to worry about quality.

There is no need to buy an overly expensive starter. On average, their service life is the same, but frankly Chinese products “do not last” very long.

Frequent malfunctions

The Lada Largus starter has certain malfunctions.

1. Oxidation or loosening of the lower bolt of the solenoid relay. This instantly affects the engine starting - at first it is possible to start only after 2-3 attempts, then it does not work at all. Naturally, such fastening is not reliable - it is a bad contact at the starter terminal. You can repair it from under the car. In this case, you have to remove the right wheel and use an extension cord with a 12mm socket. It will be very difficult, but this is the only method to restore contact without dismantling a large number of parts as when removing the starter. It’s easier to work with two people - an assistant will guide the tool from above, from the engine compartment.

Lada Granta, Kalina, Priora

Remove the protective cap (No. 3), unscrew the nut securing the wire to the starter solenoid relay (No. 4) and disconnect the wire from the relay (head “13”). Disconnect the block with wires (No. 2) from the starter solenoid relay.

For cars with a manual transmission with a traction drive: unscrew the 3 nuts securing the starter (No. 5) and remove it (head “13”).

For cars with automatic transmission and manual transmission with cable drive: unscrew three bolts (No. 5) and remove the starter (No. 3) (head “13” or Torx E14).

The internal combustion engine does not start when the starter is working

If in the ignition key position “Engine Start” the starter turns, but the engine does not start, it is necessary to find out the functionality of a number of elements.

After this, check that all marks on the belt, rollers and pulleys match. A broken timing belt can be checked in a simpler and faster way. Unscrew the oil filler cap on the engine, make sure that when you try to start the internal combustion engine, the camshaft rotates, part of it is visible under the cap.

Lada 4×4

Remove the rear support bracket for the intake pipe by unscrewing the two bolts with a 13mm wrench.

We remove the starter protective shield by unscrewing its fastening nuts with a “13” wrench.

From the bottom of the car, unscrew the two bolts securing the starter. From the engine compartment side, move the starter forward and disconnect the block with wires.

We unscrew the nut and disconnect the wire tip from the contact bolt of the traction relay. Remove the starter from the engine compartment.

Video instruction:

[media=https://www.youtube.com/watch?v=n_PmQADIfNg]

By the way, do you know that the ignition system of LADA cars can be improved, for example, by abandoning the ignition key in favor of a start/stop button.

Keywords: lada xray starter | starter Lada Vesta | starter Lada Largus | starter Lada Granta | starter Lada Kalina | starter Lada Priora | starter 4x4 | Niva starter | universal article

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Tips to make diagnosis and repair easier

To diagnose a malfunction in a Lada Largus car, you may need special tools and devices. If there are problems with the fuel supply, it is necessary to measure the pressure in the fuel rail; for this you will need a special pressure gauge with an adapter. If it is missing, you can unscrew the gasoline supply hose from the rack, lower it into an empty container, turn on the ignition and measure how many liters of fuel the pump will pump in one minute. A working Lada Largus pump pumps approximately one and a half liters of fuel in one minute.

The performance of the crankshaft position sensor can be checked using an ohmmeter - a device that shows electrical resistance. The working sensor has a resistance of about 250 Ohms, and when a piece of metal approaches the sensor, this value should change.

The presence of a spark can be easily checked by removing the high-voltage wire or ignition coil from the spark plug and bringing the contact closer to a distance of 2-3 mm to the iron element of the engine. When starting the internal combustion engine, an electric charge - a spark - will jump between the wire/coil and the motor element. During the procedure, you must use special insulating gloves or tools.

Floating idle speed

If your speed fluctuates while driving or idling, there may be several reasons:

• valves are deformed;
• cylinder head gasket burnt out;
• Malfunction of the idle speed sensor or throttle position sensor.

Using additional signs, you can find out the location of the malfunction - directly in the engine or in the sensors. The method of eliminating the problem also depends on this. You can see how to change sensors in the Lada Largus repair manual.

Besides. that the service life of domestic engines is short, car enthusiasts note their low torque and high fuel consumption. Another common problem is that when the timing belt breaks, the valves are immediately deformed. To prevent this from happening, you need to carry out timely maintenance and repair of the Lada Largus.