These instructions apply to the BMW X3 Mk3 (G01) 2017-Present.
For other models, please choose your vehicle here.
The BMW X3 (G01, 2017–present) has no engine oil dipstick — instead of pulling a stick and wiping it on a rag, you read the level electronically through the iDrive menu. It catches a lot of owners out the first time, because there is simply nothing to grab under the bonnet. This guide walks through the on-screen check step by step, explains why the reading needs a warm engine on level ground, and shows how to top up without overfilling.
Why There’s No Dipstick
A sensor sitting in the sump measures how much oil is in the engine and passes that figure to the car’s computer, which displays it on the iDrive screen. It removes the guesswork of interpreting a smear on a metal stick, and it can flag a slowly dropping level long before you would notice anything. The trade-off is that the electronics only give a trustworthy result under the right conditions: the oil has to be warm so it has drained back into the sump and thinned to its normal running viscosity, and the car has to be on level ground so the pool of oil sits evenly over the sensor. Check it on a cold engine or on a slope and the number you see can be well out. This is a routine maintenance check, not a warning of a fault — the system is designed for you to look at the level yourself between services.
Before You Begin
- Park on a genuinely flat surface — a driveway that looks level often is not; even a slight tilt skews the reading.
- Get the engine up to normal operating temperature by driving it, rather than just idling from cold.
- Let it idle for the measurement, with the gearbox in Park and the parking brake applied.
- Have the correct oil to hand before you start, so you can top up straight away if needed.
- Keep a funnel and a rag nearby — the filler cap is on top of the engine and it is easy to spill.
How to Check the Oil Level
- Park on a level surface with the engine at normal operating temperature, then let it idle.
- On iDrive, open ‘Vehicle’ → ‘Vehicle status’ → ‘Engine oil level’.
- Wait while the car measures — it shows the level as OK, or how much to top up (or that it’s over-full).
The measurement is not instant; the car needs a short settling period while the oil is warm and moving, so give it a moment rather than expecting a number the second you open the menu.
Topping Up
- Add the correct oil to the specification listed for your engine (check your handbook for the exact grade) a little at a time.
- Re-measure after a few minutes; don’t overfill — too much oil is as harmful as too little.
Because there is no dipstick to catch a small overshoot, the safest approach is to add a modest amount, let it settle, and re-run the on-screen check before adding any more. Overfilling can aerate the oil and stress seals, so creeping up to the mark beats dumping in a full litre and hoping.
If the Reading Looks Wrong
- Cold engine or a slope — the sensor needs the car warm and level; re-check once both conditions are met.
- ‘Measurement not possible’ — let the engine idle a little longer and retry.
- A reading that swings between checks — you are almost certainly measuring at different temperatures or on different ground; standardise the conditions.
- Level dropping steadily between checks — look for leaks or consumption and keep an eye on it; don’t just keep topping up without asking why.
After the Reset
Once the level shows OK, the display will hold that status until the next measurement cycle. If you have just topped up, do a confirming check a few minutes later so you know the oil has settled and you are genuinely on the mark rather than mid-pour. There is no dipstick to wipe and re-read, so this on-screen re-check is your only way to verify the job — make it a habit.
Frequently Asked Questions
How do I check the oil on a BMW X3 with no dipstick?
Warm the engine to normal running temperature, park on level ground, then read the level through iDrive → Vehicle → Vehicle status → Engine oil level. Let the car take its measurement rather than expecting an instant figure, and top up gradually if it asks you to.
Why does my reading change between checks?
The electronic check depends on a warm engine sitting on level ground. Cold, thick oil that hasn’t fully drained back, or even a slight slope, will move the number. Check under the same conditions each time and the reading becomes consistent.
What oil does it take?
Use the oil specification listed for your particular engine — check the handbook for the correct grade and capacity, as it varies between the petrol and diesel variants. Don’t guess: the wrong viscosity can affect both the engine and how accurately the sensor reads.
Can I overfill it?
Yes, and it is genuinely harmful. Without a dipstick to catch a small overshoot, add oil in small amounts, wait, and re-measure on screen before topping up further. Too much oil can foam and pressurise seals just as too little starves the engine.
Do I need any tools?
No — the check is done entirely through the iDrive menu, so you just need the car warm and level. For topping up you only need the correct oil and ideally a funnel to avoid spills on the top of the engine.
How often should I check it?
There is no fixed rule, but because there is no dipstick to glance at, it is worth running the on-screen check periodically — before a long trip, after an oil change, or any time the car prompts you. Catching a low level early is far cheaper than ignoring it.
Doing an oil change? Reset the service counter afterwards with our X3 service reset guide. For warning lights, look up the code on autodtcs.com.
Independent guide — not affiliated with BMW. Always follow your official service manual and safety precautions. Read our full disclaimer.