Diagnosis and repair of a transmission in Kiev
The problem is that due to intensive or improper operation, even the most reliable components fail or simply break.
Repair of a manual transmission
The manual gearbox (manual transmission) is considered more difficult to use, especially for novice drivers. However, the mechanics have a number of properties (relatively simple and inexpensive maintenance, full control over gear changes, more economical fuel consumption, etc.), which make it popular among motorists.
Like any mechanism, the manual transmission requires attention and requires periodic diagnosis. Faulty transmission can be reflected in difficult gear shifting, oil leakage, arbitrary shutdown, the appearance of noise during operation. If you do not have the necessary skills and appropriate equipment, you should not try to fix any problems yourself. The transmission mechanism consists of many interdependent elements, and unprofessional intervention can lead to serious consequences. Therefore, it is better to take care of your car to qualified professionals. We will carry out professional diagnostics of a transmission and will define need of repair then our masters will execute it qualitatively.
Repair of an automatic transmission
The automatic transmission (automatic transmission) greatly simplifies driving. There is no need to use the clutch pedal, shifting speeds does not require effort on the part of the driver. However, the addition of electronics to the design of the transmission somewhat complicates its maintenance. Diagnosis and repair of the “machine” should be entrusted only to professionals who have the necessary skills and equipment.
The most common are three types of automatic transmission (robot, variator, automatic) and each of them has both advantages and its own “specific” disadvantages.
Robotic gearbox
Robotic gearbox – DSGRobot is a “conditional” automatic transmission, because it is essentially a mechanical transmission controlled by electronics. Currently, in robotic gearboxes, double clutch is used (for comfort, smoothness and shifting without jerks). Different manufacturers have different names for these boxes, but in principle have a similar design.
The most common robotic gearboxes today:
- DCT M Drivelogic (BMW);
- DSG (Volkswagen);
- PDK (Porsche);
- Powershift (Ford, Volvo);
- Speedshift DCT (Mercedes-Benz);
- S-Tronic (Audi);
- TCT (Alfa Romeo);
- Twin Clutch SST (Mitsubishi).
Based on the design features, the “robot” has a number of typical breakdowns, which are inherent in such a checkpoint. For example, premature wear of shaft bearings, contamination of sensors and contacts. In addition, frequent problems were:
- damage to the multi-disc friction clutch;
- mechanical wear of solenoids-pressure regulators in mechatronics;
- wear of a two-mass flywheel (DMF).
Variator (CVT)
CVT variatorThe variator (CVT – Continuously Variable Transmission – continuously variable transmission) – very comfortable to work with, but often not durable automatic transmission. Frequent “visitors” to the service station are owners of cars with variators manufactured by Luk (many installed on Audi 1999-2006), also popular but problematic is the variator manufactured by Jatco (massively installed on Renault, Peugeot, Citroen, Suzuki, Mitsubishi, Nissan). Problem problem goalkeepers may have the first “bells” in the form of a hum on runs of 45-50 thousand km. Most car owners with a variator face the following breakdowns:
- premature wear of cone bearings;
- very often the problem in the “brain” of the box – the electronics fail;
- wear of the reducing oil valve;
- contamination of the radiator radiator (it must be washed at least once every two years).
Automatic transmission automatic system
Automatic transmission (automatic) Hydraulic machine is a classic automatic transmission. This design of the automatic transmission is considered to be quite reliable, but modern gearboxes with a torque converter are packed with so much electronics that such a complication of the design has reduced the overall reliability of the device. Especially on reliability indicators operation of the car in the most rigid modes that is characteristic of Ukraine affects. All structural elements are electronically controlled and the failure of one small unit can paralyze the entire car. Therefore, computer diagnostics and regular maintenance at a good service station are especially important for such gearboxes to detect the problem at an early stage. Although the mechanical elements of the structure also fail:
- support bearings (mechanical sound is heard when shifting gears);
- very often the oil filter of the check point is clogged;
- the “overtaking” clutch fails;
- automatic transmission cooling system failure.
When to contact the service station to diagnose the gearbox?
The check point is an important part of a design of the car and malfunctions in it can essentially increase risks while driving. For safe operation of the check point besides your own “sense”, it is necessary to carry out periodically professional diagnostics.
Various signs can indicate a fault in the gearbox. If they are found, you should immediately contact a car service specialist. Such features include:
- the appearance of noise or buzzing when driving;
- oil leakage;
- the appearance of a grind when shifting gears;
- self-exclusion;
- difficulty shifting gears;
- speedometer malfunction, incorrect readings.
If you have any problem, then your car needs diagnostics and repair of a transmission
Proper maintenance of the transmission
As well as any mechanisms in the car, the transmission also needs the correct service which allows to eliminate in time small problems and to prevent adverse consequences. The first, and most important element of maintenance, is a regular inspection and timely diagnosis of the transmission.
We should also not forget about the need to periodically change the oil, especially in the automatic transmission, because many people believe that there is no need to change the oil. Timely replacement of seals, gaskets, gears, cleaning of the oil filter and transmission fluid, as well as inspections and modern computer diagnostics can prevent serious technical problems and extend the life of the checkpoint.
Subtleties in the issue of oil change in automatic transmissions
Very often car owners ask questions:
Do I need to change the oil in the automatic transmission?
If you opened the passport to your car, you could read there that the oil in the box is filled for the entire service life (most often we are talking about European car models). And it’s not even that manufacturers are cunning. Just in Europe, the car is often bought for 5 years (or 150 thousand km, while the warranty is valid). In Ukraine, cars are bought for a longer period, and operating conditions are more difficult than in Europe. Thus, for the normal operation of the car and its gearbox, transmission manufacturers still advise to change the oil depending on mileage. Most often, this mileage is 50-60,000 km. You can, of course, not change so often. But then, after the warranty period, do not be surprised by the poor performance of the automatic transmission or even its failure.
Service diagnostics and repair of a transmission of any system and complexity in our car service. We have the latest stands and equipment for diagnostics, maintenance and repair of mechanical and automatic transmissions. But most importantly, professional and responsible staff.