1. Increased oil consumption
Oil stains or leaks appear under or on the engine surface
1. The oil pan seal or drain plug is not tight. When changing the engine oil, replace the sealing ring (see "Engine Oil and Oil Filter - Replacement") or use an oil-resistant sealant to restore the oil pan seal.
2. The seal of the emergency oil pressure sensor is damaged. Reinstall the sensor, applying oil-resistant sealant to its threaded portion, and tighten it to the specified tightening torque (see "Oil Pressure Sensor - Replacement").
3. The cylinder head cover gasket is leaking. Replace the gasket.
4. Crankshaft seals are worn or damaged. Check the technical condition of the engine by external inspection. Replace the faulty crankshaft oil seal.
Blue smoke from the exhaust pipe when the engine is running
1. Wear of oil scraper caps. Replace the valve stem seals.
2. Wear, sticking or breakage of piston rings. Check the technical condition of the engine. You can try to eliminate ring sticking using motor oil additives. Repair the engine piston group, replace faulty parts.
2. Decrease in brake fluid level
1. Malfunction (leakage) wheel brake cylinders. Check the technical condition of the brake system (see "Brake system - checking technical condition"), replace faulty parts.
2. Damage to brake system tubes or hoses. Check the technical condition of the brake system (see "Brake system - checking technical condition"), replace faulty parts.
3. Severe wear of brake pads. Check the condition of the brake system (see "Brake system - checking technical condition"). Replace the brake pads.
3. Decrease in coolant level
1. Damage to the cooling system hoses or loosening of their fastening clamps. Based on the coolant leaks, we determine the locations of leaks (see "Checking the technical condition of the cooling system"). We replace faulty clamps and other parts.
2. Damage to the radiator of the cooling system. Inspection (by the drips) we determine the location of the damage (see "Checking the technical condition of the cooling system"). If it is impossible to eliminate the leak using a sealant or "cold welding", we replace the faulty radiator.
3. Damage to the air conditioning system heater radiator. Inspection (by the drips) we determine the location of the damage (see "Checking the technical condition of the cooling system"). If it is impossible to eliminate the leak using a sealant or "cold welding", we replace the faulty radiator.
4. Damage to the cylinder head gasket. We inspect the oil level indicator. If white emulsion is detected on the indicator, it is necessary to remove the cylinder head and determine the cause of the malfunction. Check the condition of the cylinder head; replace a deformed head. Install a new cylinder head gasket.