Grinding noise when braking on a Lada Granta: 7 reasons and what to do

Grinding or squeaking noise when braking Lada Granta - one of the most common complaints from owners. This sound is not just annoying: it signals a malfunction in the brake system, which can lead to serious consequences - from accelerated wear of parts to complete loss of brakes. In 80% of cases, the problem is solved by replacing the pads or discs, but sometimes deeper damage is to blame, for example, deformation of the caliper or corrosion of the guides.

In this article we will analyze all possible causes of the grinding noise - from trivial to rare, and we will also give step-by-step instructions on how to diagnose and fix the problem yourself. We will place special emphasis on the nuances Grants, because its braking system has specific “weak points”: for example, rapid oxidation of metal elements due to budget materials or design features of the rear drum brakes on some modifications.

If you hear a grinding sound only when you press the pedal lightly, and when braking hard, the sound disappears - this is one diagnosis. If the squeak is constant and does not depend on the force of pressing, it’s different. We will teach you how to distinguish these cases and tell you when you can get by with minor repairs and when it’s time to go to a service station.

1. Brake pad wear is the main cause of grinding noise.

On Lada Granta Front brake pads last on average 30–50 thousand km, rear (if drum) - up to 80–100 thousand km. When the friction layer is worn down to metal, the pad begins to rub against the disc with its “bare” base, producing a characteristic squeal or grinding sound. On Grante This sound is especially noticeable due to the open wheel design and thin metal rims on base trims.

How to check:

• 🔍 Visual inspection: Look through the wheel spokes at the thickness of the pad. If the friction layer is thinner than 2–3 mm, it’s time to change it.
• 🚗 Test on the go: When braking at low speed (10-20 km/h), does the grinding noise get worse? This is a sure sign of “bare” metal.
• 🔧 Diagnostic indicator: on some pads for Grants There are metal “squeakers” that begin to creak when worn critically.

On Grante common uneven pad wear — one wears out faster than the other due to soured caliper. In this case, you need to change both pads on the axle, even if the second one looks normal. Ignoring the problem leads to damage to the brake disc, and replacing it will cost 3-5 times more than the pads.

2. Warped or worn brake discs

Brake discs on Lada Granta (especially on versions with a 1.6 8V engine) are thinner than on many foreign cars and wear out faster. The normal thickness of a new disc is - 20–22 mm, minimum permissible - 17.8 mm. When wear is exceeded, the disc begins to “drive”, and its edges cling to the pads, producing a grinding noise.

Other signs of disk problems:

• 🌀 Vibration on the steering wheel when braking - a signal about the “figure eight” (deformation) of the disk.
• 🔥 Blue tint on the surface — the disk overheated, the metal lost its strength.
• 📏 Deep furrows (more than 0.5 mm) - a consequence of driving with worn pads.

On Grante Warping of discs due to overheating is common, especially if the car is operated in a city with frequent acceleration and braking. Check the discs for runout: jack up the car, spin the wheel and measure the play with an indicator. Allowable runout - no more 0.15 mm.

3. Problems with the caliper: souring and uneven fit

Caliper on Lada Granta - one of the most vulnerable points of the braking system. Due to corrosion of the guides or piston, the pads may not completely move away from the disc, which leads to constant friction and grinding. This is especially true for cars older than 5 years or after winter use.

How to diagnose:

• 🔥 Wheel overheating: after the trip, touch the disc - if it is hot and you did not brake hard, the caliper “wedges”.
• 🚗 Uneven pad wear: The inner pad wears out faster than the outer pad.
• 🛠️ Jammed guides: try moving the caliper by hand - if it does not “play” freely, it needs cleaning.

On Grante a common problem with caliper piston, which loses its tightness over time. If, after pressing the brake pedal, the caliper does not return to its original position, the pad continues to rub against the disc, producing a grinding noise. In this case, the caliper will need to be repaired or replaced.

What happens if you don't clean the caliper?

If you ignore caliper souring, over time the piston may completely seize. This will lead to constant friction of the pad against the disc, overheating of the brake fluid and even fire. In critical cases, the wheel may lock while moving.

4. Corrosion and dirt on brake mechanisms

Brakes Lada Granta They do not have full protection from moisture and salt, so rust quickly forms on them in winter or after washing. Particularly vulnerable:

• 🔩 Caliper guides — they rust and block the movement of the pads.
• 🛡️ Rear drums (on versions with drum brakes) - corrosion on the working surface causes grinding noise.
• 🧲 Brake disc edges - Rust accumulates around the edges and scratches the pads.

To eliminate grinding noise caused by corrosion:

1. Remove the wheel and clean the caliper and disc with a wire brush.
2. Apply to caliper guides high temperature grease (for example, Slipkote 220-R DBC).
3. Check the condition of the caliper boots - if they are torn, replace them.

On Grante With rear drum brakes, the grinding noise often appears after a long period of parking. This is rust on the working surface of the drum. The solution is simple: brake intensively several times at a speed of 30–40 km/h - the rust layer will be erased.

5. Low quality or unsuitable pads

Many owners Lada Granta save on brake pads by installing cheap analogues or counterfeits of well-known brands. Such pads often contain metal shavings or low-quality friction material that squeaks from the first kilometers. In addition, they wear out faster and damage the discs.

Signs of “left” pads:

• 🔊 The rattle appears immediately after installation - even if the pads are new.
• 💨 Increased dust formation — black dust quickly accumulates on the wheels.
• 🔥 Brake overheating — pads do not dissipate heat well.

For Grants We recommend pads from proven brands:

Brand	Model	Average price (per set)	Features
ATE	13.0460-2834.2	1 200–1 500 ₽	Soft friction material, low dust
Ferodo	FDB1476	1 000–1 300 ₽	Good heat dissipation, suitable for aggressive driving
TRW	GDB1476	1 400–1 700 ₽	Long service life, minimal disc wear
LADA Original	2190-3501080	800–1 000 ₽	Budget option, but the first 200–300 km often creak

If you have already installed low-quality pads, it is not necessary to change them immediately. Try it sharpen the wheels and run-in: 200–300 km of quiet driving without sudden braking. Sometimes this helps eliminate the grinding noise.

6. Problems with brake drums (for versions with drum brakes)

On Lada Granta Rear drum brakes are often installed as standard. They are less efficient than disk ones, but are cheaper to maintain. However, over time, the drums wear out or become warped, resulting in grinding noise. Typical problems:

• 🌀 Drum ellipse - due to overheating or mechanical damage.
• 🛠️ Working surface wear - deep furrows appear.
• 🔩 Weakening the springs — the pads do not return to their original position.

How to diagnose:

1. Raise the rear of the car with a jack and remove the wheel.
2. Turn the drum by hand - if you feel any beating or snagging, it needs to be sharpened or replaced.
3. Check the play of the pads - they should move freely, but not hang out.

On Grante with drum brakes, grinding noise often appears after replacing the pads if not adjusted hand brake. A cable that is too tight prevents the shoes from moving completely away from the drum, resulting in constant friction.

Remove the drum and clean it of rust|Check the condition of the springs and guides|Lubricate the rubbing elements with high-temperature grease|Adjust the handbrake after installing new pads-->

7. Other possible causes of grinding noise

If you've checked your pads, discs, calipers and drums, but the grinding noise remains, pay attention to less obvious reasons:

• 🚗 Wheel bearing boot: If it is torn, dirt gets into the bearing and it starts to creak. The sound is similar to a brake grinding sound, but it appears even without pressing the pedal.
• 🛡️ Brake disc guard: If it is bent, it may catch on the rim when the wheel rotates.
• 🔧 Loose caliper mounts: the bolts may become loose, and the caliper will begin to “walk”, making a metallic grinding sound.
• 🌀 Deformed brake shield: on Grante it is thin and can bend from an impact, catching the disc.

To accurately determine the source of the sound, use mechanic's phonendoscope or a long screwdriver: press its metal end against the caliper, disc or hub, and the handle against your ear. This way you can localize the grinding noise. If the sound is coming from the hub, the problem is most likely a bearing.

What to do if a grinding noise appears after replacing the brake pads?

If you have just changed the pads, but the grinding noise remains (or appears), the reasons may be the following:

• 🛠️ Incorrect installation: The pads are installed upside down or are not fully secured.
• 🧹 Dirt on the disc surface: before installing new pads, the disc must be cleaned of rust and plaque.
• 🔧 Unbroken pads: new friction materials sometimes squeak during the first 100–200 km.
• 🌀 Warped caliper: If the caliper was not cleaned and lubricated when replacing the pads, it may jam.

To eliminate the grinding noise after replacement:

1. Remove the wheel and check that the pads are installed correctly.
2. Clean the disc and caliper from dirt with a wire brush.
3. Apply to the back of the pads anti-squeak paste (for example, ATE Plastilube).
4. Carry out a break-in: 10–15 smooth braking from a speed of 50–60 km/h to 10–20 km/h.

If the grinding noise does not go away after running in, check compatibility of pads and discs. For example, on Grant with disks R14 Pads from the version with discs will not fit R15 - they will cling to the edges.

FAQ: Frequently asked questions about grinding brakes on Grant

❓ The grinding noise appears only when you lightly press the pedal. What is this?

Most likely you have brake pads are worn out to the metal, and when pressed lightly, the metal base rubs against the disk. During heavy braking, the friction material (albeit thin) still comes into contact with the disc, and the grinding noise disappears. The solution is to urgently replace the pads.

❓ Why can you hear a grinding noise even when you don’t slow down?

This is a sign jammed caliper or worn wheel bearing. In the first case, the pad constantly rubs against the disc, in the second, the bearing is damaged. Raise the car on a jack and spin the wheel by hand: if it turns with difficulty or you hear a crunching sound, the problem is in the bearing.

❓ Is it possible to drive if the grinding noise appeared recently?

Short term - possible, but no more than 100–200 km. Then you risk damaging the brake disc, and then repairs will cost many times more. If the grinding noise is accompanied by vibration or the car pulls to the side, you cannot drive - this is a sign of a serious malfunction (for example, peeling of the friction material of the pad).

❓ What lubricant should be used to treat the caliper guides?

Use high temperature lubricants, resistant to washout and temperatures up to 300°C. For Grants will fit:

• Slipkote 220-R DBC (best option, but expensive)
• Molykote G-Rapid Plus (good price/quality ratio)
• LIQUI MOLY Bremsen-Anti-Quietsch-Paste (easy to apply)

Do not use Litol or Solid oil - they do not withstand heat and are quickly washed out.

❓ The rattling noise disappeared after washing, but returned a day later. What's the matter?

Probably, after washing, the dirt was washed off the discs and pads, and they temporarily stopped squeaking. But if there are already metal shavings on the pads or the disc is deformed, the grinding noise will return. Another possible reason is moisture getting into the caliper, which caused temporary corrosion of the guides. Solution: clean and lubricate the caliper, check the condition of the pads.

If after reading the article you have not found the answer to your question or your Grante has atypical symptoms (for example, appears only at high speed or is accompanied by a knock), consult a diagnostician. In some cases, the problem may lie in ABS or brake system hydraulics, and without special equipment it cannot be detected.