BMW warranty extension 5135900100
What it saysThe coverage period for qualifying lower rear side panel water drain repair that addresses the issues described in the Service Information Bulletin has been extended to 15 years / 150,000 miles, as determined from… NHTSA’s full summary ↓
BMW filed this with NHTSA as a warranty extension dated Sep 3, 2026, received Sep 28, 2026, about the structure — 1 document under this number: B010826. It names 10 model years (2016–2020). A warranty extension is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
What it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
The coverage period for qualifying lower rear side panel water drain repair that addresses the issues described in the Service Information Bulletin has been extended to 15 years / 150,000 miles, as determined from the original first in-service / delivery date.
One of the 357 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B010826 | Warranty extension | Sep 3, 2026 | 11037501 | PDF, 688 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 10 model years this bulletin names have filed 339 complaints with NHTSA since 2015. 7 of them name Structure — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Several times the drivers door will not open when the vehicle is in park and the engine is turned off. When I took the car to passport Bmw in suitland maryland on 7/10 to repair the front brake I mention this problem of the door locking me inside the vehicle and I cannot get out.
2016 BMW 4 Series · Structure · filed with NHTSA Jul 10, 2020
I purchased my BMW 2016 in October of 2024. The BMW had 109,000 when I purchased it. It now has 112,000, I drove it twice to Dallas, Texas and only occasionally on the weekends, but has been garage kept most of the time since I purchased it from Dodge Bluebonnet Motors, 547 S.
2016 BMW M · Structure · filed with NHTSA Mar 31, 2025
Rear third brake light come loose, (I found all the nuts behind de leather of the car)causing the light to fall off. Also making the roof leak, water drain to the under seat, and the battery compartment, running thru the seat belt.
2017 BMW M · Structure · filed with NHTSA May 8, 2025
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the structure
Source: same model, same component group26 other manufacturer communications filed against these BMW models under the same component group (structure), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B511125 | Service bulletin | Sep 21, 2026 | When pulling on the hood (highlighted inorange in the top photo) release lever… |
| B064226 | Other | Aug 19, 2026 | Bonnet Release Holder |
| B640626 | Service bulletin | Jul 24, 2026 | A “whistling” noise is heard from the centerconsole/instrument panel when using theheating and air conditioning (HVAC) system. Heard with th… |
| B512022 | Service bulletin | Jun 30, 2026 | While driving on rough roads, a cracking sound is heard coming from the headliner area. |
| B520725 | Service bulletin | Jun 4, 2026 | The decorative trims on the head restraints of the driver’s seat and front passenger seat cause groaning noises on any route, at any tempera… |
| B641224 | Service bulletin | May 4, 2026 | 1. Use of aftermarket accessory hang-on cellular phone holders and/or air fresheners can break the instrument panel air vent slats. Damage a… |
| B510626 | Service bulletin | Apr 23, 2026 | While driving on rough surfaces, a “tapping” noise can be heard from the tailgate area |
| 5174900200 | Warranty extension | Mar 6, 2026 | The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 yea… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for BMW, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is BMW 5135900100 a recall?
No. A warranty extension is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 5135900100 repair free?
A warranty extension is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 5135900100 cover?
The manufacturer filed it against 10 model years: 2020 BMW 4 Series, 2019 BMW 4 Series, 2018 BMW 4 Series, 2017 BMW 4 Series, 2016 BMW 4 Series, 2020 BMW M and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: F33 2014 to 2016 428i Convertible: built 4 Nov 2013 – 28 Jun 2016; F33 2014 to 2016 428xi Convertible: built 12 Feb 2014 – 28 Jun 2016; F33 2014 to 2016 435i Convertible: built 30 Oct 2013 – 28 Jun 2016 — the build date is on the certification label in the driver’s door jamb.