BMW 3 Series
170 hp · 250 Nm
The benchmark of the rear-wheel-drive sports sedan class. In Turkey it sold heavily as the 320i with the 1.6-litre 170 PS engine due to tax brackets. Its road holding and gearbox are very strong; maintenance and parts costs are above the class average.
Buying risk: Low
No serious fault on record (4 minor). 1 recall(s) on record. Still get an inspection. Inspection checklist
Strengths
- 5 stars in the crash test (2019).
- Roomy boot: 480 L.
- No high-severity (costly or stranding) issue on record in our database yet.
Who is it for?
- Families and people who travel with a full load
- People who put safety first
- sec 0-100 0-100 km/h acceleration The time it takes to reach 100 km/h from a standstill. Over 12 seconds is considered relaxed, 8-10 seconds lively, and under 6 seconds very fast. 8.1
- L/100 km 7.6
- Drivetrain Drivetrain Which wheels receive the engine power. Front-wheel drive: economical and easy on slippery surfaces. Rear-wheel drive: sportier, but harder in snow. All-wheel drive (AWD): the best grip in all conditions, with slightly higher consumption. Rear-wheel drive
- Transmission Torque converter automatic A classic automatic gearbox. It makes very smooth gear changes and is the most durable automatic type in traffic. Full automatic (torque converter)
- Unverified data
- Reported problem: 4 record(s)
- Sedan · Petrol · 2019–2026 · Market: Turkey
Short, concrete sentences, no jargon. Hover over a sentence (tap it on a phone) to see what it is based on.
How is the engine?
How safe is it?
How much fuel does it use?
How comfortable is it?
-
Not enough information yet · No measured data for cabin noise or seat comfort.
What are the common problems?
Is it easy to drive?
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Not enough information yet · No measured data for steering weight or visibility.
Is it easy to park?
Is it expensive to maintain?
Is it good for a family?
-
Not enough information yet · Child-seat anchors (ISOFIX) are not listed in the records; that does not mean they are absent.
Comments are based on the values recorded on this site; thresholds are rough readings and do not replace an inspection or a test drive.
General information
- Brand / country
- BMW (Germany)
- Model / generation
- 3 Series · 3 Series Sedan (7th generation) (G20)
- Body type
- Sedan
- Trim level
- M Sport
- Market sold in
- Turkey
- Production years
- 2019–2026
- Number of seats
- 5
- Fuel type
- Petrol
Engine
- Engine
- 1.6 TwinPower Turbo 170 PS
- Engine code
- B48B16A
- Engine family
- B48 (modular)
- Layout
- Inline 4-cylinder, 16-valve, DOHC, Valvetronic, Double-VANOS
- Engine displacement Engine displacement (cc) The total volume of the cylinders. 1.0 = about 1000 cc. Thanks to turbos, small engines can now be as powerful as large ones. In many countries, taxes are calculated based on engine displacement.
- 1,598 cc
- Number of cylinders Number of cylinders 3-cylinder engines are economical but vibrate a little more at idle. 4 cylinders are balanced; 6 cylinders are very smooth and powerful.
- 4
- Turbo Turbo A propeller spun by exhaust gas forces more air into the engine, so a small engine becomes more powerful. In turbo engines, good-quality oil and timely maintenance matter even more.
- Turbo
- Fuel system
- Direct injection
- Timing drive Timing belt or chain? It keeps the engine's internal parts turning in sync. A belt must be replaced at set intervals (usually every 90-120 thousand km); if it snaps, the engine is seriously damaged. A chain usually lasts the life of the engine, but a rattling noise should be checked.
- Timing chain
- Power Engine power (horsepower / PS) Determines how quickly the car can accelerate and its top speed. For city driving, 90-130 hp is enough; if you overtake often on the highway, anything above 150 hp feels comfortable.
- 170 hp @ 5000-6000 rpm
- Torque Torque (Nm) The engine's "pulling force". High torque feels strong at low revs: the car does not struggle on hills, when loaded, or when setting off. You can think of power as how fast you can go, and torque as how easily the car accelerates.
- 250 Nm @ 2000-4700 rpm
A 1.6-litre version specific to the Turkish and Tunisian markets (Wikipedia; Motor1 TR and BMWBlog Türkiye confirm the 170 PS 1.6 launch). Worldwide the 320i uses the 184 PS 2.0 B48B20. The timing chain sits at the rear (gearbox) end of the engine; replacing it is expensive.
Transmission
- Transmission
- 8-speed Steptronic (torque converter)
- Type Torque converter automatic A classic automatic gearbox. It makes very smooth gear changes and is the most durable automatic type in traffic.
- Full automatic (torque converter)
- Number of gears
- 8
- Code
- ZF-8HP51
- Manufacturer
- ZF
- Clutch
- Torque converter + lock-up clutch
- Transmission oil
- ZF Lifeguard Fluid 8 · 8.5 L · Change at 100,000 km
Classic torque converter automatic. Known as one of the best automatic gearboxes in its class, with very smooth yet quick gear changes. More durable than DCTs in stop-and-go traffic.
BMW calls it 'lifetime oil'; ZF recommends an oil and sump filter change at 80,000-120,000 km.
Drive modes
Performance and consumption
- 0-100 km/h 0-100 km/h acceleration The time it takes to reach 100 km/h from a standstill. Over 12 seconds is considered relaxed, 8-10 seconds lively, and under 6 seconds very fast.
- 8.1 sec
- Top speed
- 228 km/h
- Average consumption (WLTP) WLTP The official fuel consumption and range test standard used in Europe. It is carried out in a laboratory; in real use, consumption is usually 10-25% higher (and range is lower for EVs).
- 7.6 L/100 km
- City
- —
- Highway
- —
- Fuel tank
- 59 L
- CO₂ emissions
- —
Mixed driving: 7-8.5 L/100 km.
Dimensions and capacity
- Length
- 4,713 mm
- Width (without mirrors)
- 1,827 mm
- Height
- 1,440 mm
- Wheelbase Wheelbase The distance between the centers of the front and rear wheels. A longer wheelbase generally means more rear legroom and a more stable ride.
- 2,851 mm
- Ground clearance Ground clearance The distance between the lowest point of the car and the ground. Important for speed bumps, bad roads and curbs. Under 140 mm is considered low; over 170 mm is considered high.
- —
- Trunk volume
- 480 L
- Number of seats
- 5
- Curb weight Curb weight / payload capacity Curb weight: the weight of the car with a full tank and no passengers. Payload capacity: the maximum weight you can add, including passengers and cargo.
- 1,515 kg
- Gross weight
- 2,070 kg
- Payload capacity Curb weight / payload capacity Curb weight: the weight of the car with a full tank and no passengers. Payload capacity: the maximum weight you can add, including passengers and cargo.
- 555 kg
- Towing capacity Towing capacity The maximum weight of trailer or caravan the car can tow. A "braked" trailer has its own brakes and can be heavier.
- Not specified / not approved
Tires, brakes and suspension
- Front tires How to read tire size Example "205/55 R16 91V": 205 mm tire width, 55 sidewall height ratio (%), R radial construction, 16 inch rim diameter, 91 load index, V speed index (240 km/h).
- 225/45 R18 95Y RSC
- Rear tires How to read tire size Example "205/55 R16 91V": 205 mm tire width, 55 sidewall height ratio (%), R radial construction, 16 inch rim diameter, 91 load index, V speed index (240 km/h).
- 255/40 R18 99Y RSC
- Rim size
- 18" (optional: 17", 19")
- Spare tire
- Run-flat tire (can drive on a flat)
- Tire pressure (front / rear) Tire pressure Correct pressure is important for both safety and consumption. Measure tires when they are cold (after the car has been parked for at least 2-3 hours). Check once a month.
- 2.4 / 2.6 bar
- Front brakes Disc / drum brakes Disc brakes are stronger and resist heat better. Drum brakes are usually used at the rear of small cars; they are cheap and long-lasting.
- Ventilated disc
- Rear brakes Disc / drum brakes Disc brakes are stronger and resist heat better. Drum brakes are usually used at the rear of small cars; they are cheap and long-lasting.
- Ventilated disc
- Front suspension MacPherson suspension The most common front suspension type. Simple, light and cheap; it provides enough comfort for most cars.
- Double-joint spring strut
- Rear suspension Multi-link suspension An advanced rear suspension that controls each wheel independently and precisely. More comfortable on bad roads and more balanced in corners.
- 5-link (five-link)
- Steering
- Variable-ratio M Sport steering
Run-flat tires (can drive 80 km at up to 80 km/h after a puncture). Pressure values can also be seen in the iDrive menu.
Safety
Euro NCAP 2019 Euro NCAP An independent European crash test organization. 5 stars is the highest rating. Since tests get tougher over time, also consider the test year: a 5-star rating from 2016 is not the same as a 5-star rating from 2024.
- Driving Assistant
- Reverse assist (automatically reverses the last 50 m)
- Parking assistant
- Driver fatigue warning
Comfort and multimedia
- Multimedia
- BMW Live Cockpit Plus (iDrive 7) (8.8")
- Apple CarPlay
- Yes
- Android Auto
- Yes
- Wireless phone connection
- Yes
- Air conditioning
- 3-zone automatic climate control
- Seats
- M Sport sport seats, half leather/Alcantara, heated
- LED headlights
- Ambient lighting
- Power tailgate
- Wireless charging
Maintenance
- Service interval
- 15,000 km or 12 months
- Engine oil Engine oil A value like "0W-20" shows the oil's thickness; but what really matters is the manufacturer approval (e.g. VW 508 00). Using the wrong oil can cause expensive failures, especially in engines with turbos and particulate filters.
- BMW Longlife-17 FE+ 0W-20 (or LL-01 5W-30) · 5.25 L · Change at 15,000 km
- Timing Timing belt or chain? It keeps the engine's internal parts turning in sync. A belt must be replaced at set intervals (usually every 90-120 thousand km); if it snaps, the engine is seriously damaged. A chain usually lasts the life of the engine, but a rattling noise should be checked.
- Timing chain
- Coolant
- BMW Antifreeze Coolant (blue, similar to G48)
- Brake fluid Brake fluid Transfers the force from the brake pedal to the wheels. Over time it absorbs moisture and its boiling point drops, so it should be replaced every 2-3 years regardless of mileage.
- DOT 4 LV (low viscosity) · Every 24 months
- Battery Battery types (AGM / EFB) Cars with start-stop systems need durable EFB or AGM batteries. Replacing them with a standard battery will cause it to fail quickly. On some premium brands, the car must be told about a new battery after it is replaced.
- 12V 70-80 Ah AGM (in the trunk, requires registration/coding)
Check by mileage and age
Enter a valid mileage.
Yearly mileage is high: heavy use may require shorter service intervals.
Upcoming maintenance items
Note: the calculation assumes maintenance is done on time. When buying used, always ask for the service records.
Faults to watch for at this mileage
Maintenance schedule
| Item | Mileage | Time | Note |
|---|---|---|---|
| Engine oil + oil filter | 15,000 km | 12 months | The car may say 25-30k km with 'Condition Based Service'; in Turkey conditions, 15,000 km is recommended. |
| Spark plugs | 60,000 km | 48 months | |
| Air filter | 60,000 km | 48 months | |
| Micro filter (pollen) | 30,000 km | 24 months | |
| Brake fluid | — | 24 months | |
| Gearbox oil + sump filter | 100,000 km | — | Recommended for long engine life. |
| Battery replacement coding | — | — | The new battery must be registered to the system when replaced, otherwise it will wear out quickly. |
Problems users report most often
4 record(s)Unverified data · Source: BMW Group, Euro NCAP 2019, auto-data, Wikipedia, KBA/NHTSA recall records (2026) · Last updated: 2026-11-05
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Cooling system leak
Severity: MediumLeaks from the expansion tank, thermostat and plastic coolant connections are a known issue in the B48 family.
Symptoms: 'Coolant level low' warning, sweetish smell in the engine bay.
Engine 60,000 – 150,000 km Estimated cost: 6,000 – 25,000 ₺
-
Oil leaks (valve cover / sump)
Severity: LowOver time, leaks can appear from the valve cover and oil sump gaskets.
Symptoms: Oil leak in the engine bay, burnt oil smell.
Engine 80,000 – 180,000 km Estimated cost: 5,000 – 15,000 ₺
-
iDrive 7 software bugs
Severity: LowIn the early years, screen freezes, CarPlay disconnections and digital instrument cluster errors were reported on iDrive 7; fixed with OTA updates.
Symptoms: The screen reboots and wireless CarPlay won't connect.
Whole generation At every mileage Estimated cost: 0 – 3,000 ₺
-
Firm ride and cost of run-flat tires
Severity: LowRun-flat tires give a firm ride and cost more than normal tires. If you switch to normal tires, a repair kit should be carried.
Symptoms: Harsh jolts on rough roads, tyre noise.
Whole generation At every mileage Estimated cost: —
Recalls Recall When a manufacturer calls cars in to the service because of a safety or quality issue. The repair is free. When buying a used car, ask the service whether it has been done.
- 2026 · Starter motor replacement — BMW announced a global recall to replace the starter motor on about 575,000 vehicles built between July 2020 and July 2022 (3 Series including the G20). The scope in Turkey has not been confirmed from an official source; check with a BMW service centre using the chassis number.
Parts
Important parts and equipment
| Group | Part | Description |
|---|---|---|
| Engine | Electric water pump | Not mechanical, electronically controlled. |
| Engine | Timing chain (at the rear) | Replacing it may require lowering the engine/gearbox. |
| Engine | Valvetronic engine | Power control via valve lift instead of a throttle valve. |
| Engine | Oil filter housing + gasket | |
| Gearbox | ZF 8HP mechatronic | |
| Running gear | Rear differential | Rear-wheel drive. |
| Running gear | M Sport suspension | Lowered by 10 mm, firm setup. |
| Electric | Body control modules (BDC) |
Used / spare part prices
| Part | Category | Availability | Average price |
|---|---|---|---|
| Periodic maintenance kit (original) | Maintenance | Easy to find | 8,000 – 16,000 ₺ |
| AGM battery (coding included) | Electric | Easy to find | 9,000 – 16,000 ₺ |
| Front brake pads | Brake | Easy to find | 4,000 – 9,000 ₺ |
| Front brake disc (pair) | Brake | Easy to find | 8,000 – 18,000 ₺ |
| LED front headlight (protruding) | Bodywork / Lighting | Medium | 35,000 – 90,000 ₺ |
| Front bumper M Sport (used part) | Bodywork / Lighting | Medium | 15,000 – 40,000 ₺ |
| Run-flat tire (single, 18") | Tire | Easy to find | 6,000 – 12,000 ₺ |
| Electric water pump | Cooling | Medium | 18,000 – 40,000 ₺ |
| Expansion tank | Cooling | Easy to find | 3,000 – 7,000 ₺ |
Prices are estimated ranges as of 2026-10-01; confirm the current price with the seller.
Source: BMW Group, Euro NCAP 2019, auto-data, Wikipedia, KBA/NHTSA recall records (2026) · Last updated: 2026-11-05