Mercedes-Benz GLC X253

Cause: wear of piston rings or oil caps; microcracks in the GBC are possible. Met after 40,000 - 150,000 km. Removal cost: replacement of oil caps - about 20 000 rubles; overhaul of the engine (when wearing rings) - 50 000 - 180 000 rubles.

Increased oil consumption

Cause: wear of piston rings or oil caps; microcracks in the GBC are possible. Met after 40,000 - 150,000 km. Removal cost: replacement of oil caps - about 20 000 rubles; overhaul of the engine (with wear of the rings) - 50 000 - 180 000 rubles. # # Destruction of the piston group

Cause: detonation caused by improper operation of nozzles or low-quality fuel, as well as high load. It was met after 50,000 – 120,000 km. Cost of elimination: 250 000 – 450 000 rubles. # Wear of couplings of phase rotators (Vanos)

Symptoms: cracking at start-up and long start of the engine. Reason: vibration of the intake coupling of the phasoregulator on an unheated engine, leading to a failure of the signal of the shaft position sensors; turning or displacement of the pulsed discs on the camshafts. It was met after 60,000 – 100,000 km. Cost of elimination: 20 000 – 100 000 rubles. # # Stretching of the timing system drive chain

Reason: a constructive feature of early versions, insufficient lubrication during cold start (there is no reverse valve in the hydraulic tensioner of the timing system chain, which leads to oil drainage after engine stop and loss of chain tension). It was found after 80,000-150,000 km. Cost of elimination: replacement of the chain of the timing system - 50 000 - 90 000 rubles. # Wear of the guide bushes of the exhaust valves

Reason: design defect leads to excessive backlash of the valve, violation of heat sink and burnout of the plate of the valve. It was found after 30,000 – 120,000 km. Removal cost: repair of the cylinder head (GBC) with the replacement of valves and guides - 60 000 - 100 000 rubles. Full replacement of the GBC on the part of the new revision - 100 000 - 300 000 rubles. # # Failure of the electric cooling pump

The reason: overheating of the electronics inside the pump or loss of tightness. It was found after 40,000-80,000 km. Removal cost: 50 000 – 70 000 rubles. # # Failure of traction battery or unstable charging

The reason: excess of the resource of 7-8 years, aggressive charge-discharge cycles, high temperatures. It was met after 120,000 – 180,000 km. Removal cost: replacement of battery modules / block repair - approximately 250 000 - 400 000 rubles and above. # # Destruction of the piston in one of the cylinders

Cause: manufacturing defect of pistons, leading to their cracking. The marriage affected individual parties of the early years of release. It was found on small runs, including up to 50,000 km. Cost of elimination: overhaul of the engine or its replacement - 800 000 - 1 200 000 rubles. # Depreciation of the timing system and hydraulic tensioner chain

The reason: natural wear during long-term operation, aggravated by untimely oil replacement. It was met after 150,000-200,000 km. Cost of elimination: replacement of the set of the chain of timing system - more than 50 000 rubles. # # Leak heat exchanger

The reason: high thermal loads, leading to deformation and depressurization of the node. It was met after 100,000 – 150,000 km. Cost of elimination: replacement or repair of the heat exchanger - 15 000 - 30 000 rubles. # # # Flow of coolant

Cause: deformation of the plastic body of the water pump (pump). It was found after 60,000 – 90,000 km. Removal cost: 15,000 – 40,000 rubles. ## Failure of the oil pump of adjustable performance

Cause: wear or breakage of the return spring in the pressure control mechanism, which leads to a drop in oil pressure. It was met after 100,000 – 170,000 km. Removal cost: replacement of oil pump assembly - 80 000 - 150 000 rubles (taking into account the complexity of the work - often requires removal of the pallet). # # Stretching of the rear chain of the timing system

Reason: wear of the guides and tensioner, the location of the chain on the side of the checkpoint complicates diagnosis and replacement. It was met after 100,000 – 180,000 km. Cost of elimination: 90 000 – 160 000 rubles. # # Refusal of the turbocharger

Symptoms: loss of power, gray smoke. Reason: The turbine bearing is destroyed due to oil starvation or coking. Met after 120,000 - 150,000 km. Cost of elimination: 20 000 – 100 000 rubles. # Wearing of korommysels camshala (early batches)

Reason: insufficient hardness of coating of cams in engines up to a certain number; design defect of needle bearings of rockers. It was met after 40,000-150,000 km. Removal cost: 60 000 – 200 000 rubles. # # Clogging of the particulate filter (DPF)

The reason: frequent trips in the city, lack of regeneration, use of low-quality fuel. It was met after 100,000 – 120,000 km. Cost of elimination: chemical cleaning - 5 000 - 20 000 rubles, replacement of the particulate filter - 100 000 - 150 000 rubles and above. #

Cause: wear due to oil starvation of the turbine with rare oil changes and low oil quality; engine stop without cooling the turbine. It was met after 150,000-200,000 km. Removal cost: 50 000 – 120 000 rubles (repair / replacement of the turbine). # # Fuel injectors, TNVD

Reason: sensitivity of high-pressure fuel equipment (Common Rail) to the quality of diesel fuel; clogging or wear due to impurities and water in the fuel. Cost of elimination: replacement of one nozzle - from 50 000 rubles, TNVD - from 100 000 rubles. # # Failure of the urea injection system AdBlue

The reason: crystallization of the liquid, failure of the NOx sensors or the heating element of the tank. It was met after 40,000-150,000 km. Removal cost: 50 000 – 150 000 rubles (or software shutdown for 25 000 – 40 000 rubles). # Coking valve EGR

The reason: accumulation of soot deposits during frequent short trips (urban operation), poor-quality fuel. It was found after 80,000-150,000 km. Removal cost: cleaning/replacement of the EGR valve and cooler - approximately 20,000 - 40,000 rubles (depending on the service). # # Skipping when changing gears, especially 1-2-3

Cause: pollution or low oil levels, wear products in solenoids, failure of adaptation. Met after 50,000 - 120,000 km. Cost of elimination: (adaptation / software update) – 3000 – 40 000 rubles; replacement of transmission fluid and filter (8-9 liters of ATF) – 20 000 – 50 000 rubles; cleaning or replacement of the hydroblock – 50 000 – 150 000 rubles. # # Oil leak through seals or pallets

Reason: deformation of the plastic pallet (is a disposable filter) due to temperature changes; wear of seals. It was found after 60,000-150,000 km. Removal cost: 8 000 – 30 000 rubles (replacement of seals); 35 000 – 60 000 rubles (replacement of pallet with a set of oil). # #

Cause: electrical failure, failure of control boards (TCM) or sensors, critical oil contamination. It was found after 80,000-150,000 km. Cost of elimination: diagnostics and repair of electrical wiring - from 10 000 rubles; repair / replacement of part of the hydroblock or electronic board - about 30 000 - 60 000 rubles; replacement of the mechatronic (hydroblock) board in the collection - 100 000 - 300 000 rubles. #

Symptoms: vibration during acceleration in a certain range of revolutions (1200 - 1500 rpm). Reason: natural wear of the friction lining of the hydraulic transformer lock under high load. Accelerates when driving aggressively, towing heavy trailers or untimely replacement of ATFs. It was met after 100,000 – 180,000 km. Cost of elimination: repair or replacement of the hydraulic transformer - 70 000 - 200 000 rubles. # # Bearing of the intermediate shaft (in the pallet of the ICE)

Cause: corrosion, ingress of moisture and reagents due to loss of tightness; getting into pits. High loads accelerate wear, especially on diesel versions. It was met after 50,000 – 100,000 km. Cost of elimination: 20 000 – 70 000 rubles. # # Electromagnetic coupling of all-wheel drive

Symptoms: grinding / shocks with turned wheels at low speeds; constant supply of traction to the rear axle or its complete shutdown. Reason: contamination or wear of friction discs of the clutch; use of the wrong type of oil; violation of the replacement regulations. It was met after 50,000-150,000 km. Removal cost: 30 000 – 90 000 rubles (blockage clutch). # # # Leakage of transmission oil from the transfer case

Reason: wear of the output shaft or sealing of the primary shaft of the transfer case. It was met after 50,000-180,000 km. Cost of elimination: 20 000 – 60 000 rubles. # Vibration when driving at speeds over 80 km / h

Reason: wear of the crucifers or suspension bearing of the driveshaft (including due to proximity to the hot catalyst). It was found after 70,000-150,000 km. Cost of elimination: 35 000 – 70 000 rubles. # # Failure of the servo motor distribution of torque

Reason: natural wear with rare maintenance, liquid pollution. It was found after 80,000-150,000 km. Cost of elimination: 35 000 – 90 000 rubles. # # Hum of the front gearbox

Reason: overheating and mechanical wear of internal components (cogs, bearings) due to high loads, aggressive operation or insufficient level/quality of transmission oil; appearance of metal shavings in oil. Met after 100,000 - 130,000 km. Removal cost: replacement of the gearbox 500 – 600 thousand rubles. # # Stretching of the chain in the transfer case

Symptoms: mechanical knocking or jerking with a sharp acceleration, jumping the chain. Reason: natural wear with rare maintenance, pollution of transmission fluid. It was met after 120,000 – 180,000 km. Cost of elimination: 90 000 – 150 000 rubles. # # Ball supports

It was found after 70,000 – 120,000 km. Removal cost: 5 000 – 30 000 rubles; 25 000 – 70 000 rubles (replacement of levers in the collection). # Silent blocks of front levers

It was found after 80,000 – 120,000 km. Cost of elimination: 15 000 – 50 000 rubles. # Silent blocks of rear levers

It was met after 100,000 – 140,000 km. Removal cost: replacement of silent blocks - about 8 000 - 20 000 rubles; replacement of levers with work - 12 000 - 30 000 rubles. # Wear of supporting bearings of front shock absorbers

It was found after 80,000 – 100,000 km. Cost of elimination: 3 000 - 20 000 rubles (for a couple with work). # # Shock absorbers

Reason: leakage of working fluid due to wear of the rod and glands. It was found after 100,000 – 160,000 km (previously with dynamic driving and low quality roads). Cost of elimination: replacement of a pair of front pillars - about 15 000 - 50 000 rubles, a pair of rear pillars - 10 000 - 30 000 rubles. # Error of the adaptive suspension control system and hard drive

The reason: failure of electromagnetic valves of adaptive shock absorbers or corrosion of wiring to them. It was found after 70,000 – 110,000 km. Cost of elimination: 40 000 - 90 000 rubles. #

Cause: fatigue wear, loss of elasticity. It was met after 150,000 – 250,000 km. Removal cost: 20,000 - 70,000 rubles (per set). # # Stage bearings

The reason: natural wear, dirt and dust. It was found after 60,000-150,000 km. Cost of elimination: 18 000 – 50 000 rubles. # # Air leakage from airways or distribution unit

Cause: cracks in the highways, oxidation of connector contacts, damage to internal valves. It was found after 60,000 – 120,000 km. Cost of elimination: 20 000 – 50 000 rubles. # # Pneumoballoons

Symptoms: the car sinks on one or more wheels during a long parking lot. Cause: cyclic deformation and microcracks of the pneumoballon, corrosion of the aluminum shock absorber body due to road reagents; exposure to sand. It was found after 80,000-150,000 km. Cost of elimination: 60 000 – 150 000 rubles (per cylinder). # # Compressor

Reason: overload, ingress of moisture / oil, natural wear. It was met after 100,000 – 180,000 km. Cost of elimination: 90 000 – 180 000 rubles. # # Clouding and oxidation of external chrome elements

Reason: the impact of aggressive road reagents and alkaline compounds on contactless washers; natural aging of the decorative layer under the influence of ultraviolet light. It was found after 20,000-80,000 km.

Increased oil consumption

• Cause: wear of piston rings or oil caps; microcracks in the GBC are possible. Met after 40,000 - 150,000 km.
• Removal cost: replacement of oil caps - about 20 000 rubles; overhaul of the engine (when wearing rings) - 50 000 - 180 000 rubles.

Stretching the timing system drive chain

• Reason: a constructive feature of early versions, insufficient lubrication during cold start (there is no reverse valve in the hydraulic tensioner of the timing system chain, which leads to oil drainage after engine stop and loss of chain tension). It was found after 80,000-150,000 km.
• The cost of elimination: replacement of the timing system chain is 50 000 – 90 000 rubles.

Wear of exhaust valve guides

• Reason: design defect leads to excessive backlash of the valve, violation of heat sink and burnout of the plate of the valve. It was found after 30,000 – 120,000 km.
• Removal cost: repair of the cylinder head (GBC) with the replacement of valves and guides - 60 000 - 100 000 rubles.
• Full replacement of the GBC with the part of the new revision - 100,000 - 300 000 rubles.

Failure of the electric cooling pump

• The reason: overheating of the electronics inside the pump or loss of tightness. It was found after 40,000-80,000 km.

Failure of traction battery or unstable charging

• Removal cost: replacement of battery modules / block repair - approximately 250 000 - 400 000 rubles and above.

The destruction of the piston in one of the cylinders

• Removal cost: overhaul of the engine or its replacement - 800 000 - 1 200 000 rubles.

Wear of the timing system and hydrotension chain

• The reason: natural wear during long-term operation, aggravated by untimely oil replacement. It was met after 150,000-200,000 km.
• Cost of elimination: replacement of the set of the chain of timing system - more than 50 000 rubles.

Heat exchanger leak

• Cost of elimination: replacement or repair of the heat exchanger - 15 000 - 30 000 rubles.

Failure of the controlled performance oil pump

• Cause: wear or breakage of the return spring in the pressure control mechanism, which leads to a drop in oil pressure. It was met after 100,000 – 170,000 km.
• Removal cost: replacement of the oil pump in the collection - 80 000 - 150 000 rubles (taking into account the complexity of the work - often requires removal of the pallet).

Rear chain stretching of the timing system

• Reason: wear of the guides and tensioner, the location of the chain on the side of the checkpoint complicates diagnosis and replacement. It was met after 100,000 – 180,000 km.

Turbocharger failure

• Symptoms: loss of power, gray smoke.

Particulate filter clogging (DPF)

• Cost of elimination: chemical cleaning - 5 000 - 20 000 rubles, replacement of the particulate filter - 100 000 - 150 000 rubles and above.

Turbocharger

• Cause: wear due to oil starvation of the turbine with rare oil changes and low oil quality; engine stop without cooling the turbine. It was met after 150,000-200,000 km.
• Elimination cost: 50 000 – 120 000 rubles (repair / replacement of the turbine).

Fuel injectors, TNVD

• Reason: sensitivity of high-pressure fuel equipment (Common Rail) to the quality of diesel fuel; clogging or wear due to impurities and water in the fuel.
• The cost of elimination: replacement of one nozzle - from 50 000 rubles, TNVD - from 100 000 rubles.

Coking of the EGR valve

• Removal cost: cleaning/replacement of the EGR valve and cooler - approximately 20,000 - 40,000 rubles (depending on the service).

Shifting gears, especially 1-2-3

• Cause: pollution or low oil levels, wear products in solenoids, failure of adaptation. Met after 50,000 - 120,000 km.
• The cost of elimination: (adaptation / software update) – 3000 – 40 000 rubles; replacement of transmission fluid and filter (8-9 liters of ATF) – 20 000 – 50 000 rubles; cleaning or replacement of the hydroblock – 50 000 – 150 000 rubles.

Oil flow through seals or pallets

• Reason: deformation of the plastic pallet (is a disposable filter) due to temperature changes; wear of seals. It was found after 60,000-150,000 km.
• The cost of elimination: 8 000 – 30 000 rubles (replacement of seals); 35 000 – 60 000 rubles (replacement of a pallet with an oil kit).

Emergency transition

• The cost of elimination: diagnostics and repair of electrical wiring - from 10 000 rubles; repair / replacement of part of the hydroblock or electronic board - about 30 000 - 60 000 rubles; replacement of the mechatronics (hydroblock) fee - 100 000 - 300 000 rubles.

Wear of frictions of the hydrotransformer lock

• Reason: natural wear of the friction lining of the hydraulic transformer lock under high load.
• The cost of elimination: repair or replacement of the hydraulic transformer - 70 000 - 200 000 rubles.

Intermediate shaft bearing (in the pallet of the ICE)

• Cause: corrosion, ingress of moisture and reagents due to loss of tightness; getting into pits.
• High loads accelerate wear, especially on diesel versions. It was met after 50,000 – 100,000 km.

Electromagnetic coupling of all-wheel drive

• Reason: contamination or wear of friction discs of the clutch; use of the wrong type of oil; violation of the replacement regulations. It was met after 50,000-150,000 km.

Transmission oil leak from the transfer case

• Reason: wear of the output shaft or sealing of the primary shaft of the transfer case. It was met after 50,000-180,000 km.

Vibration when driving at speeds over 80 km/h

• Reason: wear of the crucifers or suspension bearing of the driveshaft (including due to proximity to the hot catalyst). It was found after 70,000-150,000 km.

Failure of the torque distribution servo motor

• Reason: natural wear with rare maintenance, liquid pollution. It was found after 80,000-150,000 km.

Front gearbox hum

• Reason: overheating and mechanical wear of internal components (cogs, bearings) due to high loads, aggressive operation or insufficient level/quality of transmission oil; appearance of metal shavings in oil. Met after 100,000 - 130,000 km.
• Removal cost: replacement of the gearbox 500 – 600 thousand rubles.

Stretching of the chain in the transfer case

• Symptoms: mechanical knocking or jerking with a sharp acceleration, jumping the chain.
• Reason: natural wear with rare maintenance, pollution of transmission fluid. It was met after 120,000 – 180,000 km.

Ball supports

• The cost of elimination: 5 000 – 30 000 rubles; 25 000 – 70 000 rubles (replacement of levers in the collection).

Silent blocks of rear levers

• The cost of elimination: replacement of silentblocks - about 8 000 - 20 000 rubles; replacement of levers with work - 12,000 - 30,000 rubles.

Shock absorbers

• Reason: leakage of working fluid due to wear of the rod and glands.
• The cost of elimination: replacement of a pair of front pillars - about 15 000 - 50 000 rubles, a pair of rear pillars - 10 000 - 30 000 rubles.

Error of the adaptive suspension control system and hard drive

• The reason: failure of electromagnetic valves of adaptive shock absorbers or corrosion of wiring to them. It was found after 70,000 – 110,000 km.

Springs

• Cause: fatigue wear, loss of elasticity. It was met after 150,000 – 250,000 km.

Stage bearings

• The reason: natural wear, dirt and dust. It was found after 60,000-150,000 km.

Air leakage from airways or distribution unit

• Cause: cracks in the highways, oxidation of connector contacts, damage to internal valves. It was found after 60,000 – 120,000 km.

Pneumoballoons

• Cause: cyclic deformation and microcracks of the pneumoballon, corrosion of the aluminum shock absorber body due to road reagents; exposure to sand. It was found after 80,000-150,000 km.

compressor

• Reason: overload, ingress of moisture / oil, natural wear. It was met after 100,000 – 180,000 km.

Oxidation and opacification of external chrome elements

• The cost of elimination: 40 000 – 90 000 rubles (replacement of the kit); 15 000 – 30 000 rubles (antichrome / glue).

Fogging of the lens of the front headlights and failure of the ignition/control units

• Reason: violation of the tightness of the headlamp body or microcracks at the junction of plastic, clogging of ventilation valves. It was found after 40,000-80,000 km.
• The cost of elimination: 20 000 – 60 000 rubles (sealing); 50 000 – 200 000 rubles (replacement of the headlight).

Corrosion on doors, wings and lower body elements

• The reason: accumulation of dirt and salt reagents in gaps and under body panels, insufficient factory anticorrosion treatment of hidden cavities, small chips of the LCP.
• Cost of elimination: local repair of corrosion with primer and painting of the site - about 10 000 - 70 000 rubles per element (depends on the complexity and zone).

Spontaneous reboot or freeze of multimedia system (Command/MBUX)

• The cost of elimination: 5 000 – 20 000 rubles (software update); 60 000 – 120 000 rubles (replacement of the head unit).

Incorrect operation or failure of parktronics

• The cost of elimination: 5 000 – 20 000 rubles (replacement of one sensor).

Battery discharge after parking

• Remediation cost: 10 000 – 40 000 rubles (diagnostics of leakage and replacement of battery).

Errors in the ESP/ABS system

• Cause: ABS sensor failure, corrosion of connectors, damage to wiring. Met after 80,000 - 120,000 km.
• Cost of elimination: diagnostics of the system - 2 000 - 4 000 rubles.
• ; replacement of the ABS sensor with work - 4 000 - 20 000 rubles.
• Comprehensive diagnostics and restoration of wiring - 8 000 - 20 000 rubles.

Failure of the electronic steering column lock (ESL/ELV)

• Cause: mechanical wear or electrical failure of the locking mechanism; wear of the micromotor brushes or software locking of the latch. It was found after 80,000 – 130,000 km.

Rear view camera failure (no image, image distortion)

• Removal cost: repair / cleaning of the camera – 4 000 – 6 000 rubles; replacement of the camera with work – 10 000 – 50 000 rubles.

Failure of the servo valve of the climate control system

• Reason: wear of plastic traction or gear gears gear gear gear, burnout of contacts of the electric motor, calibration errors of the climate control unit. It was met after 50,000 – 120,000 km.

Reduced efficiency of air conditioning cooling

• Cause: leakage of refrigerant through the radiator (capacitor) or connections; corrosion and leakiness of the condenser tubes (air conditioner radiator) due to exposure to road reagents. It was met after 50,000 – 140,000 km.

Scream, noise or failure of the cabin heater fan

• Cause: wear of the electric motor brushes or bushings; failure of power transistors in the speed control module. It was found after 60,000 – 120,000 km.
• The cost of elimination: 15 000 – 50 000 rubles (replacement of the motor in the collection).

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