BMW's ambition for 2030 is to have 50% electric cars in its total inventory, according to a Challenge article published in March 2023. Marketed largely under the Mini/BMW brands, more than two-thirds of these models will be equipped with an electric powertrain.
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Gearbox broken? We help you identify and order your model
The reliability of the BMW i4's automatic transmission, the sedan's centerpiece, is well established. However, it requires rigorous maintenance in order to last as long as possible. In this guide, EDEN BOITES reveals some professional tips on how to preserve it. You'll also learn how to repair the gearbox on your BMW i4.
BMW i4 engine and gearbox performance
The BMW i4 is equipped with a 1-speed automatic gearbox. Part of the BMW 4 Series family, the German manufacturer's all-electric sedan is available in several versions:
- BMW i4 eDrive35 with 286 hp: this model's entry-level engine sends 210 kW to the rear axle, accelerating from 0 to 100 km/h in 6 seconds.
- 340 hp BMW i4 eDrive40: 250 KW of power and a maximum speed of 190 km/h. Integrated into the rear axle, it accelerates from 0 to 100 km/h in 5.7 seconds.
- BMW i4 M50 with 544 hp: this is the most powerful version, with all-wheel drive and a combined output of 400 kW. From 0 to 100 km/h takes 3.9 seconds, and the top speed is 225 km/h.
The BMW i4 2024 is largely based on the ordinary BMW i4 eDrive40, but incorporates a second electric motor to create an all-wheel drive.
Our professional tips for BMW i4 gearbox maintenance
Don't believe those who tell you that automatic gear boxes are maintenance-free and lubricated for life! This complex system is subject to wear and tear and misuse.
Although costly, an oil change every 60,000 to 80,000 km is essential to maximize transmission life. You should also regularly check the level and appearance of the gearbox oil. Finally, black spots or a bad smell should alert you.
We also recommend regular maintenance of the engine cooling system and an annual overhaul of the automatic transmission. And don't forget to adopt the right habits to preserve your automatic gearbox:
- Avoidoperating the gears until the car has stopped;
- Limit towing of large trailers or caravans;
- When towing, keep the drive wheels raised, put the lever in neutral and drive at less than 50 km/h.
Repair steps for a BMW i4 gearbox
Despite all your precautions, the automatic transmission on your BMW i4 may show symptoms of malfunction due to wear and tear. For example, the car may start to spin, a sign that the automatic gearbox is unable to transmit engine power to both wheels correctly. Similarly, a sudden or violent automatic gear change or gearbox lock-up should give you cause for concern.
This complex electro-mechanical system requires a certain amount of expertise in the event of malfunction. That's why you should call in your mechanic as soon as you notice any abnormal reaction from the automatic transmission.
First, the professional will use a diagnostic scanner to pinpoint the problem. He may also carry out pressure tests or completely dismantle the gearbox. Then, depending on the fault, he may decide to :
- Replace defective parts (box sensors, seals, solenoids, etc.);
- Change the transmission oil;
- Adjusting transmission pressure;
- Change the gearbox.
BMW i4 gearbox replacement deals at low prices
If your garage considers that the breakdown of your BMW i4 requires a change of transmission, it will offer to include the price of a new BMW i4 gearbox in its estimate. But you can save money by buying it yourself.
On the EDEN BOITES website, you'll find all the BMW gearbox references at low prices. Reduce your bill even further by choosing a used automatic gearbox! Our quality control department carries out strict tests to guarantee reliability.
