MRO Maintenance, Reviews and Overhaul
Simple overhaul - Replacement of Filters and Engine Oil
The Simple Overhaul involves replacing the engine oil and filters.
The oil must be changed annually, regardless of the mileage, because it loses its properties over time. It changes to the number of Kilometers, depending on the indications of each manufacturer.
Automatic or manual gearbox oil change
Changing the oil in the gearbox is important to prevent premature wear of the components and to ensure their optimal operation.
Both manual and automatic gearboxes require oil changes at certain time intervals, recommended by the vehicle manufacturer or depending on the conditions of use.
Fluid replacement
Replacing vehicle fluids, such as antifreeze and brake fluid, is important to the safe and efficient operation of your vehicle.
Antifreeze or coolant has the role of keeping the engine temperature at the optimal level, preventing it from overheating.
Brake fluid is responsible for transferring braking force from the brake pedal to the vehicle’s braking system. It must be changed at regular intervals, recommended by the vehicle manufacturer or depending on the conditions of use.
Mixing is prohibited. Common brake fluids based on glycol ethers are hygroscopic, meaning they attract water. As water absorption increases, the properties of the brake fluid deteriorate: the boiling point decreases, the viscosity increases, and corrosion problems can occur on the internal parts of the brake system. A regular brake fluid change is therefore essential – usually every two years.
Visual check for the braking system/ replacement of pads and discs
To visually check the braking system, follow these steps:
We check if the brake pads are worn or if they have a minimally accepted thickness. If they are thin or dull, then they must be
replaced.
We check whether the brake discs have any scratches or rusted portions. If they are damaged, they must be replaced.
We check if there are any leaks or traces of oil on the disc or pads, this may indicate a problem with the braking system.
We make sure all bolts and nuts are tight and in good working order.
After the visual check, it is recommended to do a functional check by testing the brakes on a clean and dry road. The wear of brake pads and brake discs largely depends on driving style.
When driving normally, it is common to change brake pads after about 50,000 kilometers. In difficult operating conditions – for example when driving with a trailer – considerably more wear is possible, which is why a check during regular maintenance is essential.
Visual check of the distribution system/ replacement of belts or chains
To check the distribution system of a car, we basically follow the following steps:
We check the engine oil level and make sure it is in the middle range, between the marks on the dipstick.
We start the engine and listen for any abnormal noises, such as metallic noises or other unusual noises.
We visually check the timing belts for any signs of wear or damage such as cracks, splits or missing parts.
We check the timing of the timing belt or chain.
If problems are found with belts or chains, they should be replaced as soon as possible to avoid further damage and ensure proper engine operation.
It is recommended to periodically check the distribution system and replace the belts or chains if necessary to prevent inherent problems.
Check and Overhaul Suspension System
Suspension service is the process by which suspension components are checked and maintained to ensure proper operation and safety of the vehicle. The service check of the suspension system includes:
Checking the condition of the wheels and tires to see if they are worn or deformed.
Checking and replacing bushings and rubber parts in the suspension system if worn or damaged.
Checking the level of wear of connecting elements such as stabilizer bar, pivots and torsion bar.
Checking and replacing fasteners such as nuts and bolts.
Checking and adjusting the damping level and wheel geometry.
It is important to follow the vehicle manufacturer’s recommended service interval to ensure optimal operation and longer component life.
Steering System Check and Review
In service, the steering system check may include the following:
Checking the oil level in the steering system and replacing it if necessary.
Checking and adjusting the pressure in the steering system.
Checking and replacing any worn or faulty components in the system such as bushings, bearings or pipes.
Checking and adjusting steering geometry, which includes steering angle and wheel alignment.
Checking the sealing and connections of all components in the steering system.
Testing the steering system while the vehicle is in motion to detect any abnormal vibration or play.
It is important to check and maintain the steering system regularly to ensure safe driving and a longer life of the components.
Joint check
Automotive mechanical joint servicing refers to the inspection and maintenance of the mechanical components that connect the various parts of the vehicle, such as axles, suspensions and steering systems.
This may include checking the wear and alignment of the hinged components, as well as replacing any worn or damaged parts.
Greasing/lubrication
“Lubrication” is the process of applying a lubricant, such as oil or petroleum jelly, to reduce friction and wear between the vehicle’s mechanical components. Lubrication is essential to prevent premature wear and ensure vehicle reliability.
“Greasing protection” refers to measures taken to prevent damage or wear to certain vehicle components. This may include, for example, applying a protective coating to certain surfaces or using high-quality materials to prevent rust or corrosion.
“Vaseline” is a lubricant used to lubricate and protect certain vehicle components, such as the braking system or the door closing system. Vaseline can be applied by spraying or by rubbing directly on the components. It is important to use the appropriate grease for each component to ensure optimal lubrication and protection.
Visual check of hoses / cables / pipes
Automotive service overhaul of hoses, wiring and pipes refers to the process of inspecting, cleaning and replacing them according to their degree of wear.
Hoses are used to transport liquids or compressed air, wiring is used to transmit electrical signals, and pipelines are used to transport gas or fuel.
The purpose of this overhaul is to ensure the correct operation and safety of these components, as well as to prevent problems that may arise in the future.
Internal and external lighting status check
Checking the condition of an automobile’s interior and exterior lighting involves checking the operation of all light bulbs and fuses, replacing any defective bulbs or fuses, and making sure all lights are working properly.
The condition of the lighting system is also checked and replaced if necessary. This overhaul should be done periodically to ensure proper lighting and to avoid any safety issues.
The lighting system of today’s vehicles – especially those with incandescent lamp technology – should be checked regularly, as defects are possible at any time.
More and more cars have headlight checks as standard in their annual service.
This is less common with headlights and light-emitting diode (LED) lights, which often last as long as the entire car and are therefore often not interchangeable. However, in the (rare) case of failure, the entire unit must be replaced, which can be very expensive.
Tire condition check
Tire condition check review in auto service is the process by which mechanics check a car’s tires to make sure they are in good condition with proper tread depth and no visible defects.
This may include checking tire pressure, wear and any damage. It is important to carry out this service to ensure the safety and efficiency of the car on the road.
Tires are subject to wear and tear, including age-related wear.
Ultraviolet radiation and ozone cause aging while wear and tear is caused by road abrasion.
Wiper status check
The inspection to check the condition of the wipers in the car service includes checking their operation, the level of wear and any problems or defects.
If problems are found, the wipers can be changed to ensure correct and safe operation.
Periodic inspection witness reset
To reset the periodic inspection warning light, a specialized diagnostic system is required.
This diagnostic system allows us to access the car’s control system and reset the periodic inspection witness.
It is important to note that, in some cases, it is necessary to carry out a complete overhaul of the car before resetting the warning light, to ensure that the car meets the necessary safety and emission standards.
