The Stronic downshifts from 2nd gear to 1st gear.

[Bleakerje]

Greetings, everyone. I own a 2019 A5 sportback 40 TDI. The vehicle is now at the dealership, where they have offered a 2022 A4 40 TFSI as a complimentary replacement car. After using it for a week, I discovered that it only moves down from 2nd gear to 1st gear when coming to a full stop. My auto engages in downshifting much in advance of that. When moving at around 1 km per hour or slower, the vehicle shifts into first gear. I operated the A4 vehicle at a very slow pace, and it only shifts to first gear when it comes to a full halt. Is there a malfunction in my A5 or do varied gear ratios determine whether some automobiles downshift before coming to a stop? My vehicle has accumulated a mileage of 25,000 kilometres, whereas the A4 has reached 32,000 km.

[LimeLing]

I do not understand the question. It is possible to verify and modify this using VCDS.

[Bleakerje]

Indeed, I ought to consult an expert. The dealer believes that the issue is within the typical range and not a cause for concern. I would want to ascertain if others had a similar experience or whether their vehicles remain in second gear during the whole journey. Particularly TDIs.

[LimeLing]

The official dealers are sometimes derogatorily referred to as "stealers". They want her money. Locate an expert.

[Authorce]

While I cannot provide a definitive response, it is quite likely that there would be a disparity in gearbox between a vehicle powered by a diesel engine and one powered by a petrol engine. The first option has a much narrower range of revolutions compared to the second option, along with a distinct torque curve. I anticipate that a vehicle equipped with a diesel engine will maintain the lower ratios for a longer duration when ascending, and hence, I would not be astonished if it shifts to lower gears earlier while descending.

However, it is hoped that you will get feedback from those who own diesel vehicles.

[Adv3nture]

If anything, I would love my automobile to shift to first gear while moving at very slow speeds. In my opinion, the performance of your own vehicle surpasses that of the courtesy car. If the vehicle remains in second gear while moving at very slow rates, it is likely exerting significant strain on the drivetrain to regain momentum.

The primary focus of the manufacturer is to optimise the engine and transmission for minimal emissions. Furthermore, there are automobiles that engage the next gear prematurely, a significant factor contributing to the accumulation of carbon deposits in the intake system of diesel engines. Additionally, these vehicles may operate at a speed of 60km/h while in 6th gear, without downshifting to 5th gear when the driver chooses to accelerate. This puts significant strain on the whole powertrain, particularly the crankshaft bearings, due to the reduced oil pressure at low RPM.

It is not unexpected that individuals have their automatic gearboxes reprogrammed and their shift points altered. Regrettably, I am starting to believe that the most advantageous action one can do with their just acquired automobile is to have it remapped. The repeated use of "emissions" suggests a focus on the release of pollutants or greenhouse gases into the atmosphere.

[Bleakerje]

Indeed, I speculated that the issue may be related to emissions in the more recent A4 model as well. It also has the feature of automatic start-stop.