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1 safety recall. 46 owner complaints. We mapped every trouble spot before you sign the papers.
Solid reliability overall. Common issues are concentrated in a few systems.
The contact owns a 2020 BMW M340I. The contact stated that upon starting the vehicle, the contact noticed a thick white smoke coming out of the exhaust pipes. In addition, the contact stated that there was an abnormal ticking sound coming from the engine while idling. There was…
The starter malfunctioned causing electrical damage to the motor and related components. Although there is literature that exists that this is a potential problem for this vehichle, BMW refuses to fix the problem and is asking me to pay. My warranty is expired by 4 months, but…
Unable to read oil measurements Above 18% many 2020’s have a had a oil pump replacement
I have owned my 2020 BMW m340iX for 2 years. During that time I have had 5 tires blow out, including 3 in the past 3 months alone. The tires are "run flat" and need to be completely replaced if they develop any issues. The dealer I use for service, who is owned by the…
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
If the headrest folds down in a crash, there would be an increased risk of injury.
Mostly yes. With a reliability score of 8.0 out of 10 based on 46 owner complaints filed with NHTSA, the 2020 BMW M340i is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Based on NHTSA records, the most-reported issue is engine, with 26 complaints filed. Average repair cost runs about $3,100 at an independent shop.
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 46 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.