A new BMW comes with five separate coverages that run for different lengths of time and cover different things. They are usually described together as one warranty, which is where most of the confusion starts — the paint corrosion cover lasts twelve years, the scheduled maintenance three.
This page sets out what each one is, how long it lasts, and where the gaps are.
What a new BMW is covered by
| Coverage | Term | What it does |
|---|---|---|
| New Vehicle / SAV Limited Warranty | 4 years / 50,000 miles | Defects in materials and workmanship |
| BMW Ultimate Care | 3 years / 36,000 miles | Scheduled maintenance |
| Roadside Assistance | 4 years, unlimited miles | 24 hours a day, 365 days a year |
| Rust Perforation Limited Warranty | 12 years, unlimited miles | Corrosion that perforates the bodywork |
| High-voltage battery (electric models) | 8 years / 100,000 miles | Defects in the lithium-ion battery assembly |
Whichever comes first applies in every case. A car that covers 50,000 miles in two years is out of the main warranty at two years.
The main warranty: four years, 50,000 miles
The New Vehicle/SAV Limited Warranty is the one people mean by “the warranty”. It covers defects in materials or workmanship for four years or 50,000 miles from the in-service date.
Two words in that sentence do a lot of work. Defects means something was wrong with the part as supplied — not that it has worn out. In-service date means the day the car was first delivered, not the model year. A 2024 model first registered in March 2025 is covered to March 2029.
That second point matters on a used purchase. A car built in one year and sold in the next carries warranty from the later date, which can be worth several months.
Maintenance is three years, not four
BMW Ultimate Care covers scheduled maintenance for the first 3 years or 36,000 miles. This is the coverage that ends first, and the gap between it and the warranty catches people out.
Between year three and year four the car is still under warranty for defects but you are paying for its servicing. Given what BMW dealer servicing costs, that transition is worth planning for rather than discovering.
Maintenance covers scheduled items — the things the service indicator asks for. It does not cover wear items such as brake pads, tyres or wiper blades, which are consumables rather than maintenance.
The twelve-year one nobody mentions
The Rust Perforation Limited Warranty runs 12 years with unlimited mileage. It is the longest coverage on the car by a factor of three.
Read the name precisely: perforation. It covers corrosion that has gone through the metal from the inside out. Surface rust, stone chips that have started to corrode, and rust caused by damage are not covered. It is a warranty against the body rotting, not against the car looking rusty.
Electric models: the battery is separate
On BMW’s electric cars the high-voltage lithium-ion battery assembly is warranted against defects in materials or workmanship for 8 years or 100,000 miles from the in-service date.
There is also a capacity provision worth knowing about, because battery degradation is the thing used-EV buyers actually worry about. For model year 2022–2025 BMW Certified all-electric vehicles with retail delivery dates from 1 March 2026, the high-voltage battery is separately covered if the state of health falls below 75%, for 8 years or 100,000 miles.
That is a threshold, not a guarantee of performance: a battery at 76% health is behaving as expected under the terms, however it feels to drive.
How the terms have changed since 1985
The warranty a BMW carries is a document of its era, and the original US brochures in
our archive printed the terms in force at the time. Read in
order, they show three changes and one thing that has not moved at all.
| Brochure year | Main warranty | Corrosion cover |
|---|---|---|
| 1985 7 Series | 3 years / 36,000 miles | 6 years |
| 1987 325i Convertible | 3 years / 36,000 miles | 6 years |
| 2004 5 Series | 4 years / 50,000 miles | not stated in this brochure |
| 2010 1 Series | 4 years / 50,000 miles | 12 years, unlimited mileage |
| 2015 3 Series | 4 years / 50,000 miles | 12 years, unlimited mileage |
The 1985 7 Series brochure states it as part of a passage about how the cars are built:
BMW offers “three-year/36,000-mile limited warranty covers defects in materials and
workmanship with a six-year limited warranty against rust perforation”. The
1987 325i Convertible brochure repeats the same pair of numbers — “its enviable
3-year/36,000-mile limited warranty and 6-year limited warranty against rust
perforation”.
By 2010 both halves had roughly doubled. The 1 Series brochure of that year describes
coverage that “starts with the New Vehicle Limited Warranty, providing you with coverage
for the first four years or 50,000 miles, whichever comes first”, and adds that
“you have 12-year, unlimited-mileage warranty protection against corrosion and rust
perforation”.
Where the change happened we cannot say from our own documents, and we are not going to
guess. The archive holds US brochures from 1985 and 1987 and then nothing again until
2004, so the switch from 3/36,000 to 4/50,000 falls in a window this collection does not
cover.
What has not moved is the headline figure. The archive holds 148 US brochures from
model years 2004 through 2015. Not all of them mention the warranty at all — it is
usually buried in the small print of the specification pages rather than sold as a feature
— but 69 do, across every model line, and all 69 print the same four years or 50,000
miles. That is still the term today. The main warranty on a BMW sold in America has been
unchanged for more than two decades, which is unusual enough to be worth saying.
One caveat on reading the older documents. The maintenance program of the 2000s was
more generous than today’s: the 2004 brochures describe a “Full Maintenance Program
covers all factory-recommended maintenance, as determined by the Service Interval
Indicator for 4 years or 50,000 miles”. That matched the warranty exactly. Today’s
Ultimate Care is 3 years or 36,000 miles, so the gap between warranty and free servicing
described above did not exist on a car of that era — it was created when the
maintenance term was cut.
What is not covered
The categories are consistent across manufacturers and worth stating plainly:
- Wear items — brake pads and discs, tyres, wiper blades, clutch friction material.
- Damage — accident, misuse, or environmental damage such as hail and flood.
- Modifications — a failure caused by a non-BMW part or a tune is not a defect in BMW’s part.
- Neglected maintenance — a failure traceable to skipped servicing.
The modification point is the one that generates the most argument. A remap does not void the whole warranty automatically, but it does give BMW grounds to decline a claim on anything the remap could plausibly have affected — which, for an engine or transmission failure, is a wide net.
Extending it
BMW sells Vehicle Service Contracts that extend coverage for new, pre-owned and Certified vehicles up to seven years or 100,000 miles. These are contracts rather than warranties — a purchased product with its own terms, not an extension of the original coverage.
Worth comparing against the alternative before buying: on a car you intend to keep past the fourth year, the arithmetic depends on the model and on how much you drive.
Buying used: what carries over
The New Vehicle Limited Warranty transfers with the car for the balance of its term, so a two-year-old BMW with 20,000 miles arrives with roughly two years of factory coverage remaining. Rust perforation transfers too, for the balance of its twelve years.
If the car is a BMW Certified Pre-Owned vehicle, an additional layer applies after the original warranty expires. We cover that in BMW Certified Pre-Owned explained.
Checking what a specific car is still covered by starts with its in-service date, and the VIN is how a dealer looks that up. Our VIN decoder will confirm the model year and plant, which is the first step in establishing what the car actually is.
Common questions
How long is the BMW warranty?
The New Vehicle/SAV Limited Warranty is 4 years or 50,000 miles, whichever comes first. Other coverages run for different terms — maintenance for 3 years, rust perforation for 12.
Is BMW maintenance included?
Scheduled maintenance is covered by BMW Ultimate Care for 3 years or 36,000 miles. That is one year shorter than the warranty.
Does the BMW warranty transfer to a new owner?
Yes. The New Vehicle Limited Warranty runs with the car for the balance of its term.
How long is the battery warranty on an electric BMW?
8 years or 100,000 miles for the high-voltage battery assembly against defects.
Does modifying a BMW void the warranty?
Not automatically and not entirely, but it gives grounds to decline claims on anything the modification could have caused.
What is the longest BMW warranty?
The Rust Perforation Limited Warranty, at 12 years with unlimited mileage.
Sources
- BMW USA — Ultimate Care: the 3 year / 36,000 mile scheduled maintenance term.
- BMW USA — Ultimate Service: the 4 year / 50,000 mile New Vehicle Limited Warranty, 4 years of roadside assistance and the 12-year unlimited-mileage rust perforation warranty.
- BMW USA — Certified Pre-Owned warranty information: the high-voltage battery terms, including the state-of-health provision.
- BMW USA — Protection Program: Vehicle Service Contracts to seven years or 100,000 miles.