Seeing B14 on your Acura’s display means an engine oil and filter change with a multi-point vehicle inspection is due, along with a tire rotation and spark plugs, valve clearance and the timing belt where fitted.
The letter and the numbers are read separately. “B” is the main service; every digit after it is an additional job tracked on its own clock. A code with several digits is not one big procedure — it is several unrelated services that happened to come due in the same week.
You are not limited to an Acura dealer for B14. The two brands share a parts network, which means a Honda service department can carry out the same work, and independent specialists familiar with the marque are usually cheaper again.
Acura B14 Service Cost
Budget $1,120 to $2,225 for the Acura B14 service. The spread reflects genuine differences in engine, fluid volume and shop rates rather than padding, and because B14 bundles separate jobs, an itemized quote tells you far more than a single figure.
| Item | What it covers | Typical cost |
|---|---|---|
| “B” | Oil and filter change, plus multi-point inspection | $90 – $180 |
| “1” | Tire rotation | $30 – $45 |
| “4” | Spark plugs, timing belt if fitted, water pump and valve clearance inspection | $1,000 – $2,000 |
| Total Acura B14 service | $1,120 – $2,225 | |
| Doing it yourself (parts only) | around $615 | |
Why B14 Is the Most Expensive Code Your Acura Will Show
Sub-item 4 is what puts B14 into four figures. It bundles spark plugs, a valve clearance inspection, a water pump inspection and — on engines built with one — a timing belt replacement.
Whether the belt applies to you depends entirely on your engine. Acura’s J-series V6, in the MDX, the V6 TLX, the RLX and the older TL, drives its camshafts with a rubber belt on roughly a 100,000-mile schedule. These are interference engines: if the belt lets go, valves and pistons try to occupy the same space and the engine is finished. A shop worth using replaces the water pump, tensioner and idler pulleys at the same time, because they sit behind the same covers and the labor is already being paid for. Acura’s four-cylinder cars — the ILX, the Integra, the RDX and the 2.0T TLX — use a timing chain instead, which is designed to last the life of the engine and is not part of this service.
The valve clearance inspection applies either way. Acura engines use solid shim adjustment rather than hydraulic lifters, so clearances genuinely drift with mileage and genuinely need measuring. A faint ticking from the top end on a higher-mileage Acura is very often exactly this, and it is the kind of check that quietly prevents a much larger bill later.
When Is the Acura B14 Service Due?
The short answer is when the car says so. Acura’s Maintenance Minder is not a mileage timer — it calculates remaining oil life from how the engine has actually been worked, which means a commuter doing short cold runs will see B14 considerably earlier than someone doing long motorway journeys.
Watch the percentage rather than the odometer. Fifteen percent brings up the wrench, five percent sharpens the message, and zero flips the display to a negative figure counting how far beyond the service point you have gone.
The timing belt portion, where your engine has one, is effectively a mileage milestone in its own right at around 100,000 miles rather than something the algorithm decides.
Which Acuras Display B14?
B14 is not model-specific. It can appear on the MDX, RDX, TLX, ILX, Integra, RLX, ZDX or TSX. What changes between them is the cost rather than the work: bigger engines take more oil, some require different fluids, and labor times vary with how accessible everything is.
The 4 splits the range too. Only the J-series V6 cars — MDX, V6 TLX, RLX and TL — have a timing belt to replace. Four-cylinder Acuras run a chain and skip that part entirely, which is the single biggest reason quotes for this code vary so much.
Check your owner’s manual for the exact fluid specifications your engine needs before booking.
Is Acura B14 Service Free Under Complimentary Maintenance?
Partly at best. Acura’s program covers A1 and B1 work — oil, filter, tire rotation and inspection — for two years or 24,000 miles on 2023 and 2024 cars. For 2025 models it shrank to the first scheduled service inside 12 months or 12,000 miles. Everything in B14 beyond that basic scope is chargeable.
The practical move is to ask for an itemized invoice rather than a single number, because the oil and rotation line may still be covered while the rest is not. The work has to happen at a participating Acura dealer with Acura Genuine parts and oil, and the clock runs from the car’s original in-service date, not the day you bought it.
What B14 Means for SH-AWD Acuras
The B14 work itself is identical whether your Acura drives the front wheels or all four. What changes is what tends to arrive alongside it. Super Handling All-Wheel Drive uses a torque-vectoring rear unit that Honda does not fit to its own models, and it carries a fluid service of its own: sub-item 6, rear differential fluid, due at around 15,000 miles initially and every 30,000 miles after.
So if you drive an SH-AWD MDX, RDX, TLX or ZDX, do not be surprised to see B14 arrive with a 6 attached. Front-drive Acuras never show a 6, because there is no rear differential to service.
Related Acura Service Codes
- Acura B124 service code
- Acura B12 service code
- Acura B13 service code
- Acura A14 service code
- Acura B15 service code
- Acura B16 service code
- Acura B17 service code
- Acura B1 service code
- All Acura Maintenance Minder codes — the full reference table
- How to reset the Acura Maintenance Minder
Acura B14 Service FAQ
What does the Acura B14 code mean?
The “B” is an oil and filter change with a multi-point inspection, and each digit after it is a separate job that has come due at the same time. For B14 those are a tire rotation, spark plugs, valve clearance and the timing belt where fitted. It is a bundle of independent services, not one procedure.
How much does the Acura B14 service cost?
Typically $1,120 to $2,225 at a dealer or independent shop, depending on your model and local labor rate. The spread is unusually wide on this code because the timing belt only applies to the V6 cars — a four-cylinder Acura lands near the bottom of that range and a V6 MDX near the top. Acura and Honda dealer pricing is broadly comparable, so a Honda service department is worth a call for a second quote.
Can I do the Acura B14 service myself?
Partly. The oil and the tire rotation are straightforward at home. The timing belt and valve clearance work is not a driveway job by any reasonable reading — it needs the front of the engine apart, and an error on an interference engine destroys the motor. Parts alone come to roughly $615.
Is B14 covered by Acura complimentary maintenance?
Not fully. The program covers A1 and B1 services for two years or 24,000 miles on 2023 and 2024 cars, and only the first scheduled service within 12 months or 12,000 miles on 2025 models. B14 includes work beyond that, so expect the additional items to be chargeable. The oil and rotation portion may still be covered, so ask for an itemized invoice.
Does the B14 code mean something is wrong with my Acura?
No. B14 is a maintenance reminder shown with a wrench symbol, generated by the Maintenance Minder’s own countdown. It is not a diagnostic trouble code. A check engine light comes from a different system entirely and points to a stored fault. If both are showing they are unrelated, and the check engine light is the one to look at first.
How do I reset the B14 code?
An Acura dealer will reset it as part of the job. Doing it yourself: touchscreen models use Settings, then Vehicle, then Maintenance Reset, while older cars use the SEL/RESET stalk button or trip knob held for around ten seconds with the ignition on. On a multi-item code like B14 you can reset sub-items individually — do that rather than clearing everything, or the car will stop tracking jobs you have not actually done. Our Acura Maintenance Minder reset guide covers each method by model.