In the near future, Autogate.com will continue to take stock of the engine, transmission, body electrical and service complaint index of the 2021 luxury model. In this issue, we talk about the engine complaint index of first-class models.
Key findings:
Judging from the complaint data of Automen.com 2021, the top 10 models of the luxury car engine complaint index are mostly popular models with high sales. Of course, there are exceptions, and Land Rover Discovery, which is not selling high, has also quietly made the list. It is worth mentioning that as a first-line luxury brand, "BBA" is all on the list. Although luxury cars have a loud brand and high prices, this does not represent absolute high-end quality.
The complaint data shows that most of the models shortlisted in the top 10 list of the complaint index have typical quality problems. Among them, the Centralized Outbreak Problem of Audi A4L, Audi Q5L and Discovery Shenxing is engine leakage antifreeze. BMW 3 Series, Audi A3, and found that the burning of oil in the three models of Shenxing has become a common problem. The main problem with the Mercedes-Benz C-Class is that the engine cannot be started due to motor failure. Mercedes-Benz GLB-class carbon canister solenoid valve dampers have received concentrated complaints.
The following is an analysis of the specific luxury car engine complaint index.
1
BMW 3 Series Complaint Index 225.75
Auto quality complaint comments: The bmw brilliance 3 series of luxury mid-size car benchmark models ranked first in the luxury car engine complaint index. The excessive consumption of engine oil and the burning of engine oil have become the key reasons for the bmw brilliance 3 series to rank first. From the feedback point of view, the problem occurs in the 2020 model, the engine burns the cylinder carbon deposit is serious, due to the valve chamber cover cracks, the oil and gas separation problem, resulting in oil with the exhaust gas discharge situation. The 4S shop now adds 5.75 liters of oil to the problem vehicle in order to prevent the oil from burning too quickly, and at the same time replaces the valve chamber cover for the problem model, and the problem is greatly reduced after replacing the valve chamber cover.
2
Mercedes C-Class Complaint Index 207
Car quality complaint comments: Mercedes-Benz C-Class, another hegemonic model of luxury mid-size cars, ranked second in the complaint index list. Engine motor failure became the most complained about problem in the Mercedes-Benz C-Class. Engine motor failures are often caused by the 48V mixing system installed in the Mercedes-Benz C 260 L. According to the owner, Mercedes-Benz has said that it will replace the battery for the vehicle. The engine cannot be started to concentrate on the 2019 and 2020 models. Judging from the solution cases, the problem is suspected to be caused by the electrical failure of the rear signal acquisition and promotion control module. However, in any case, Mercedes-Benz really should not have these problems.
3
BMW X1 Complaint Index 200.25
Car Quality Complaint Reviews: Bmw X1 is the third place in the 2021 Luxury Car Engine Complaint Index. The problem focused on the 2020 model, which was manifested by the abnormal sound at the engine and turbocharger levers, which according to the feedback from the complaints showed that the abnormal sound at the lever of the turbocharger of the BMW X1 engine was caused by the design of the bypass valve lever of the turbocharger. Because the BMW X1 in this batch is equipped with a turbine bypass valve that is too large, when the turbine is started, the position of the lever will emit a strange sound. In the face of this problem BMW official did not make any response, after some owners found that this problem can be solved by installing a card, the 4S store also agreed with the view, and said that replacing the turbine is useless. As a well-known luxury brand, these product problems caused by defective parts should not appear on BMW.
4
Mercedes-Benz GLB Complaint Index 194.25
Car quality complaint review: Mercedes-Benz GLB, which has decent sales, ranks fourth in the complaint index list. Mercedes-Benz GLB has been subjected to concentrated complaints from car owners, and the reason is that the engine of the 2020 model is abnormal. Among the engine noise problems exposed at the end of last year, the reduction of carbon tank solenoid valve dampers is the culprit. The problem mainly exists in models that left the factory before October 2020, and the models that have left the factory since then have solved the problem, but the manufacturer has not replaced the parts for the old model at the same time.
5
Audi A4L Complaint Index 189
Automobile quality complaint comments: Engine leakage antifreeze has become the main reason why the Audi A4L is on the list of complaints, accounting for nearly 60% of complaints. Judging from the feedback from the complaints, the problem models are concentrated in the old models of 2016 and 2017, which are caused by the design defects of the thermostats. After the 2018 model model improved the thermostat design, the problem was greatly reduced. The old car owner can only repair it at his own expense.
6
Audi A6L Complaint Index 157.5
Auto quality complaint comments: The Audi A6L, the sales dominance level of luxury medium and large cars, ranks sixth on the list. Frequent exposure of engine flameout jitter is the main problem of the Audi A6L. Judging from the complaints, the engine stall is mainly based on the 2021 model. Some insiders said that the problem may be caused by the improper opening timing of the EGR valve, resulting in an excessive amount of exhaust gases that are not involved in combustion entering the cylinder. The purpose of this is to cope with environmentally friendly emissions. The final cause and solution still need to wait for a clear response from the manufacturer.
7
Audi A3 complaint index 82.5
Car quality complaint comments: The Audi A3 became the third Audi model to be listed in the top 10, but the complaint index is not too high. Judging from the feedback from the complaints, the engine burning oil has become the culprit of the Audi A3 being complained by the owner. It is worth mentioning that the problem of burning oil mainly exists in the 2019 model. Although it was complained about and protected by the owner, the manufacturer still did not give feedback on the problem.
8
Audi Q5 Complaint Index 81
Automotive quality complaint review: Audi Q5L became the fourth Audi model to be shortlisted for the complaint index TOP10. Like the Audi A4L, the Audi Q5L has also suffered complaints from many car owners due to engine leakage of antifreeze. From the perspective of model distribution, the problem of leakage antifreeze of Audi Q5L is also more common in old models such as 2017 models, and the thermostat is still the culprit.
9
Mercedes E-Class Complaint Index 69
Car quality complaint comments: Mercedes-Benz E-class as another hot selling model of Mercedes-Benz still failed to escape the engine problem, Mercedes-Benz E-class was complained about the problem mainly pointed to the engine failure light and engine burning oil, and the engine failure light bright problem model concentrated in 2014 model, after the inspection of the harness node said that the contact is poor, 4s the harness head pulled out after cleaning treatment, solved the problem, vehicle harness design is the main reason for the problem. For the problem of burning oil, it is necessary to focus on the 2019 and 2020 models, and the manufacturer has not made any response to the above problems.
10
Found Divine Action Complaint Index 64.5
Car quality complaint comments: Compared with other models on the complaint help, it was found that the sales volume of Shenxing was much lower, and the reason for the discovery that Shenxing was on the list of 10th was the leakage of antifreeze, mainly reflected in the 2016 and 2017 models, according to the owner's feedback, the reason for the problem was due to the design of the vehicle water tank, and the problem was solved after replacing the water tank, and the manufacturer did not give a solution to this problem.