Procedure for daily vehicle maintenance: instructions with checklist

Daily maintenance (DTO) of a car is not a bureaucratic formality, but a real way to save on repairs and extend the life of the car. According to statistics traffic police, up to 15% of accidents occur due to technical faults that could have been identified in advance. But many drivers either ignore ETO or carry it out “for show”, missing critical points.

In this article - a specific procedure taking into account modern realities (electronics, sensors, hybrid systems), and not outdated advice from instructions from 20 years ago. We'll figure out what to check before the trip, while driving and after stopping, how to record identified problems and when you can fix them yourself, and when you should urgently go to a service center. At the end you will find an interactive checklist that you can save to your phone.

1. Preparation for inspection: tools and conditions

Start by organizing your workspace. You will need:

• 🔦 Flashlight with a bright light (preferably a headlight) - for examining hard-to-reach places.
• 📋 Notepad or app to fix faults (example: AutoCare, Car Scout).
• 🧰 Minimum set of tools: gloves, oil dipstick, tire pressure gauge, multimeter (for checking the battery).
• 📱 Phone with camera - to photograph suspicious parts and show them to the master.

Optimal conditions for inspection:

• 🌤️ Daylight or a well-lit room (in the dark you will miss 30% of defects).
• 🚗 Level ground (the slope distorts the oil level and tire pressure readings).
• ❄️ Cold engine (if you check the oil or coolant).

⚠️ Attention: Never conduct an inspection at a gas station or near an open flame. Gasoline vapors can even ignite from static discharge from clothing.

If you are inspecting your car after parking it overnight, first check:

• 💧 Puddles under the car - oil, antifreeze or brake fluid have different colors and consistencies.
• 🐭 Traces of rodents (gnawed wires, excrement) - especially important for cars parked near grass or trees.

2. External inspection: body, glass, optics

Start by visually walking around the car in a clockwise direction. Pay attention to:

element	What to check	Symptoms of a problem
Body	Scratches, dents, chips, corrosion	Rust is “bubbling”, paint is peeling, visible damage after an accident
Glass	Cracks, chips, dirt, windshield wiper operation	Crack >5 cm long, chip in driver's vision area, streaks after wipers
Optics	Performance of headlights, dimensions, brake lights, turn signals	Dim light, flickering, condensation inside the headlights, broken glass
Mirrors	Adjustment, integrity, heating (if any)	Broken glass, unfixed position, non-working heating

Pay special attention to:

• 🔍 Windshield: Even a small chip can turn into a crack due to temperature changes. If the damage is in the wiper operating area - risk of defect increasing by 3 times.
• 💡 LED optics: Modern LED headlights often do not burn out completely, but lose brightness. Compare the light with a reference (for example, the headlight of a nearby car).
• 🪟 Door seals: If they are cracked, moisture and dust will enter the interior, which will lead to corrosion and problems with the electronics.

⚠️ Attention: If condensation remains in the headlight for more than a day after washing, this is a sign of depressurization. Ignoring the problem will lead to oxidation of the contacts and failure of the ignition unit (repair cost from 10,000 ₽).

To check the optics, turn on low beam and walk around the front of the car. Ask an assistant to alternately press the brake pedal and turn on the turn signals. An alternative is to use a reflection in a shop window or garage wall.

3. Check wheels and tires: pressure, wear, fastening

Tires are the only element in contact with the road, so their condition directly affects safety. Start with a visual inspection:

• 🚗 Pressure: check with a pressure gauge (not by eye!). Standard values are indicated on the driver's door sticker or in the instructions. For most passenger cars this is 2.0–2.2 bar.
• 🔄 Tread wear: minimum permissible depth - 1.6 mm (in Europe - 3 mm). Use a wear indicator or a coin (edge of a 10-kopeck coin = ~1.5 mm).
• 🔧 Wheel fastening: Check the tightness of the nuts/bolts (especially after tire mounting). The tightening torque for most cars is 90–120 Nm.
• 🌀 Tire sidewalls: cracks or swellings (“hernias”) are a reason for urgent replacement.

Please note uneven wear:

• 🔺 Edge wear - low pressure.
• 🔺 Wear in the center - high blood pressure.
• 🔺 Sawtooth wear - wheel alignment violation.
• 🔺 Local "spots" — wheel imbalance or faulty shock absorbers.

⚠️ Attention: If after changing the tires the car “steers” to the side, do not rush to go to the wheel alignment. First check:

1. Tire pressure (even a difference of 0.2 bar can cause skidding).
2. Direction of tire rotation (the arrow on the sidewall must coincide with the direction of travel).
3. Tightening the wheel nuts (a loose wheel can create vibration).

Only if these points are normal, contact the service.

To check the pressure, use a high-quality pressure gauge (electronic or mechanical with a metal case). Cheap plastic pressure gauges give an error of up to 0.3 bar. Check the tire pressure when the tires are cold - after a trip the readings will be overestimated by 0.2–0.4 bar.

How to check pressure without a pressure gauge?

It is impossible to determine the exact pressure by eye, but a critical deviation can be noticed by:

- visual deformation of the tire (flattening or swelling),

- increased fuel consumption (>10% of normal),

- deterioration of controllability at high speeds.

However, this method only works with a strong deviation from the norm (from 0.5 bar).

4. Monitoring fluid levels: oil, coolant, brake fluid

Fluid levels are the "pulse" of the car. Checking them takes 5 minutes, but allows you to avoid serious damage. Start with oils:

1. Place the car on a level surface, turn off the engine and wait 10 minutes (so that the oil flows into the crankcase).
2. Remove the dipstick, wipe it with a clean, lint-free cloth, and insert it back until it stops.
3. Pull the dipstick out again and check the level. Normal - between marks MIN and MAX.
4. Assess the condition of the oil: if it is black, has metal shavings, or smells like burning, it needs replacement.

Next check:

• 💧 Coolant: The level in the expansion tank must be between MIN and MAX. Color - bright green, red or blue (if the liquid is cloudy or has sediment, replacement is required).
• 🚘 Brake fluid: the level in the tank must be at least MIN. If the liquid is dark brown, it’s time to change it (it absorbs moisture, which reduces the boiling point).
• 🔋 Power steering fluid (if there is a hydraulic booster): check the level and color (the norm is light yellow or red).

Critical signs requiring immediate action:

• 🛑 Oil below MIN — risk of oil starvation and engine seizure.
• 🛑 Coolant below MIN — engine overheating, risk of cylinder head deformation.
• 🛑 Brake fluid below MIN — reduction in braking efficiency.
• 🛑 Traces of liquids under the car - leakage requiring diagnostics.

⚠️ Attention: If the oil level drops faster than 1 liter per 1000 km, this may indicate:

- leakage through gaskets or seals,

- wear of piston rings or valve stem seals,

- turbine malfunction (if any).

Do not add oil without finding out the reason - this is only a temporary measure!

To accurately check the brake fluid level, clean the reservoir from dust (so that dirt does not get inside) and shine it with a flashlight. The level should be visible without removing the cover. If the liquid is below MIN, top up only that brand, which is recommended by the manufacturer (mixing different types leads to corrosion of the system).

5. Diagnostics of the engine compartment: belts, pipes, battery

Open the hood and inspect the key elements. Start with drive belts:

• 🔗 Alternator belt: There should be no cracks, delaminations or signs of wear. Check the tension - when pressing with a finger, the deflection should be 10–15 mm.
• 🔗 Timing belt (if visible): critical for the engine! Replace strictly according to regulations (usually every 60–100 thousand km).
• 🔗 Cooling system pipes: check for softness (hard pipes crack) and traces of leaks.

Next, inspect battery:

• 🔋 Terminals: there should be no oxidation (white coating). Clean with sandpaper and lubricate Liqui Moly Batterie-Pol-Fett.
• 🔋 Housing: Cracks or swelling are a sign of malfunction.
• 🔋 Electrolyte level (if the battery is serviceable): must cover the plates on 5–7 mm.
• 🔋 Voltage: with the engine turned off - 12.6–12.7 V, on working - 13.8–14.4 V.

Check your work cooling fan:

• Start the engine and let it warm up to operating temperature (90–95°C).
• The fan should turn on automatically. If not, check the fuse or temperature sensor.

⚠️ Attention: If you notice whistle from under the hood when starting the engine, it may be:

- alternator belt slipping (requires tightening or replacement),

- wear of the tension roller bearing (characteristic “rustle”),

- pump malfunction (whistle with a metallic tint).

Ignoring it will lead to belt breakage and expensive repairs.

To check the tension of the alternator belt, press it between the pulleys. The deflection should be:

• 10–15 mm for a new belt,
• 15–20 mm for worn out.

If the belt slips, it can be tightened with an adjusting bolt (on most cars it is located on the generator bracket). However, if the belt is cracked or delaminated, just replace it!

6. Checking the operation of electronics and on-board systems

Modern cars are full of electronics, and failures may not be noticeable until a critical moment. Start with dashboard:

• 🚗 Start the engine and check if all indicators (Check Engine, ABS, ESP, airbags) have gone out.
• 🚗 Test all switches: light, wipers, heated windows, air conditioning.
• 🚗 Check the operation of the window regulators - they should move smoothly, without squeaks.

Next test multimedia system:

• 📻 Radio: Check signal reception and button operation.
• 🎵 Bluetooth: Connect your phone and make sure the sound is clear.
• 📍 Navigation (if available): check map updates and GPS accuracy.

Pay special attention driver assistance system (if any):

• 🚦 Rear view camera: The image should be clear and free of distortion.
• 🅿️ Parking sensors: Test reaction to obstacles (use a cardboard box).
• 🛣️ Adaptive cruise control: Test on an empty road.

⚠️ Attention: If the dashboard lights up Check Engine, but the car behaves normally, do not reset the error without diagnostics! It could be:

- malfunction of the oxygen sensor (increased fuel consumption),

- misfires (risk of catalyst damage),

- problem with the fuel tank ventilation system.

Use a scanner ELM327 or contact service.

To test the battery without a load plug:

1. Stop the engine and turn on the headlights for 5 minutes.
2. Start the car. If the starter turns sluggishly, the battery is discharged.
3. After startup, the voltage at the terminals should be 13.8–14.4 V (checked with a multimeter).

If the on-board computer shows errors, write down their codes (for example, P0300 — misfires). You can decrypt them through applications Torque Pro or OBD Auto Doctor.

How to reset a Check Engine error without a scanner?

On some cars, the error can be reset by disconnecting the battery for 10–15 minutes. However, this is a temporary measure - if the problem is not resolved, the error will appear again. Important: On machines with modern electronics (for example, Audi, BMW) disconnecting the battery can reset the multimedia and climate control settings.

7. Test hive: what to check while driving

Some faults only appear when driving. Conduct a short test-hive (5–10 minutes) using the following algorithm:

1. Brakes:
   • 🚗 Smooth braking - there should be no vibrations or sideways movement.
   • 🚗 Sharp braking - check the effectiveness (the car should stop without skidding).
   • 🚗 There should be no squeaks or whistles when braking (a sign of pad wear).
2. Steering:
   • 🚗 On a flat road, the steering wheel should stay straight without effort.
   • 🚗 There should be no play or knocking when turning.
   • 🚗 The hydraulic booster (or electric booster) should work smoothly, without jerking.
3. Suspension:
   • 🚗 Drive over the speed bump - there should be no dull impacts (a sign of faulty shock absorbers).
   • 🚗 On an uneven road, the car should not sway more than 1-2 times.

Transmission:

• 🚗 For manual transmission: gear shifting should be clear, without crunching.
• 🚗 For automatic transmission: there should be no jerks or delays when switching.
• 🚗 For robot/variator: check smooth acceleration.

Please note extraneous sounds:

• 🔊 Whistling - belts, bearings.
• 🔊 Knock — suspension, steering rack, engine.
• 🔊 Noise — wheel bearings, transmission.
• 🔊 Grinding — brake pads.

⚠️ Attention: If you hear it during acceleration metallic clang in the transmission area, stop immediately! It could be:

- breakage of the driveshaft outboard bearing (for rear-wheel drive cars),

- destruction of the CV joint (for front-wheel drive),

- gearbox failure.

Further movement is fraught with complete failure of the unit.

After the test drive, park and check:

• 🌡️ Engine temperature (must be within 90–95°C).
• 💨 Smell — burnt rubber (belts), fumes (electrical wiring), antifreeze (leakage).
• 🩹 Traces of liquids under the car (oil, brake fluid, antifreeze).

If you notice something suspicious, write down the symptoms (when it appears, under what conditions) and show it to the specialist. The more accurate the description, the faster the cause will be found.

💡

Extraneous sounds are often dependent on speed or load. For example, the knock of the suspension increases on uneven surfaces, and the noise of the bearings increases when cornering.

8. Recording results and planning repairs

After the inspection, record any problems identified. Use one of the methods:

• 📝 Paper magazine: Keep a table with date, mileage and description of the fault.
• 📱 Mobile application: AutoCare, Car Scout, Drivvo.
• 📧 Cloud document (Google Sheets) with maintenance history.

Classify faults by urgency:

Category	Examples	Elimination period
Critical	Brake fluid leak, timing belt break, steering failure	Immediately!
High priority	Worn brake pads, low oil level, non-functioning headlights	Within 1–3 days
Medium priority	Cracks in the pipes, dim lamps, small chips on the glass	Within 1–2 weeks
Low priority	Scratches on the body, heated seats not working, small chips in paintwork	At the next maintenance

To plan repairs:

• 🔧 Critical faults - contact service immediately.
• 🔧 Medium and small — evaluate whether you can fix it yourself (for example, replace a light bulb or add oil).
• 🔧 For complex work (timing belt replacement, suspension repair) choose a proven service with a guarantee.

When choosing a service, pay attention to:

• 📌 Specialization (not all service stations work with hybrids or cars with automatic transmission).
• 📌 Reviews (check at Yandex.Maps or 2GIS).
• 📌 Guarantee (minimum - 6 months for work, 12 months for spare parts).
• 📌 Prices (compare with the regional market average).

⚠️ Attention: If you are offered “cheap” repairs using used spare parts or analogues of unknown brands, ask for quality certificates. Savings of 2000–3000 rubles can result in repeated repairs in a month.

To record the repair history, take photographs:

• 📸 Checks/invoices with a list of works and spare parts.
• 📸 Defective parts (before and after replacement).
• 📸 Odometer reading at the time of repair.

This will help when selling the car or in a warranty case.

💡

Create a separate folder in cloud storage (Google Drive, Yandex.Disk) for all documents on the car. This way you won’t lose them and can quickly present them if necessary.

FAQ: Frequently asked questions about daily maintenance

❓ Is it necessary to carry out ETO if the car is new?

Yes, even for a new car, daily inspection is important. Firstly, you can identify manufacturing defects or the consequences of careless transportation. Secondly, the habit of checking your car will help avoid problems in the future. For example, low tire pressure or oil leakage can occur on a new car.

❓ How often should you check the oil level?

Depends on the age of the machine and operating conditions:

• For new cars (up to 5 years) - once every 1–2 weeks.
• For older cars