BMW 2 Series Active Tourer U06MPV2021–present
Every engine fitted to the second-generation 2 Series Active Tourer — from the 1.5-litre three-cylinder B38 petrol to the 326 bhp 230e plug-in hybrid.
Real UK costs and honest reliability data for BMW's most practical family car.
Backed by 147+ real UK U06 enquiries in 2025 [BMW-VERIFIED].
Engine Database
Every engine fitted to the U06 Active Tourer — spanning B38 three-cylinder petrols, B48 four-cylinder petrols, B47 four-cylinder diesels, and plug-in hybrids with up to 326 bhp.
Overview
The U06 is the second generation of the BMW 2 Series Active Tourer, unveiled in October 2021 as the successor to the F45. Built on BMW's FAAR (Frontantriebsarchitektur) platform — shared with the latest 1 Series and 2 Series Gran Coupé — the compact MPV grew slightly in size (now 4,386 mm long, 1,824 mm wide) while retaining the 2,670 mm wheelbase.
The engine line-up is all-turbocharged, featuring B38 three-cylinder petrols, B48 four-cylinder petrols, B47 four-cylinder diesels, and two plug-in hybrids (225e xDrive and 230e xDrive) with up to 87 km (54 miles) of electric range. A significant July 2024 update added the 220d diesel to the range.
Key Facts
Market Intelligence
The U06 2 Series Active Tourer generated 147+ real UK engine enquiries in 2025 [BMW-VERIFIED], concentrated on the 218d diesel and 220i MHEV petrol as the model reaches the used market.
04Best & Worst Engines
Best Petrol Overall
B48A20P (223i, 218 bhp, MHEV)
“The 2.0-litre B48 is a gem — smooth, responsive, and with mild-hybrid assistance for seamless stop-start. The 223i offers the best blend of performance and refinement in the U06 range, with 218 bhp and 360 Nm of torque.”
Who it's for: buyers who want proper performance without the PHEV's complexity.
Best Diesel Overall
B47C20B (220d, 163–190 bhp)
“The B47 is a significant improvement over the N47 — timing chain issues are far less frequent, and the engine is smoother and more refined. The 220d, added in July 2024, offers the best blend of performance and economy in the diesel range.”
Who it's for: buyers who want diesel economy without the N47's timing chain anxiety.
Highest Risk
B38 PHEV (225e/230e xDrive)
“The plug-in hybrids are the most complex powertrains in the U06 range — a 1.5-litre turbo engine, an electric motor, and a 14.2 kWh battery pack. More components mean more potential failure points, and battery replacement is a significant cost.”
Who it's for: company car drivers and buyers who prioritise electric range over mechanical simplicity.
Most Expensive Failure
230e xDrive (326 bhp PHEV)
“The most powerful U06 engine — and the most expensive to replace. The B38 engine, electric motor, and battery pack combine for a replacement cost that could exceed £9,500. Battery degradation is the primary long-term concern.”
Who it's for: buyers with warranty cover who want 326 bhp and low company car tax.
Best Value
B38A15P (218i, 136 bhp)
“The entry-level petrol is the smart buy for most UK buyers — 136 bhp is more than adequate for family duties, the three-cylinder is characterful and efficient, and the engine is simpler than the PHEV or 2.0-litre options. Lower running costs and proven B38 architecture make this the value champion.”
Who it's for: buyers who prioritise running costs and don't need extra power.
Most Overlooked
B38A15P (220i MHEV, 170 bhp + 19 bhp electric)
“The 220i is often overlooked because it's 'just' a three-cylinder — but with 48V mild-hybrid assistance, it produces 170 bhp and 280 Nm of torque, making it quicker than the 218i and more efficient than the 223i. The electric boost fills in the turbo lag and makes city driving a breeze.”
Who it's for: buyers who want the best balance of performance, efficiency, and simplicity.
Best Petrol Overall
B48A20P
(223i, 218 bhp, MHEV)
“The 2.0-litre B48 is a gem — smooth, responsive, and with mild-hybrid assistance for seamless stop-start. The 223i offers the best blend of performance and refinement in the U06 range, with 218 bhp and 360 Nm of torque.”
Who it's for: buyers who want proper performance without the PHEV's complexity.
Best Diesel Overall
B47C20B
(220d, 163–190 bhp)
“The B47 is a significant improvement over the N47 — timing chain issues are far less frequent, and the engine is smoother and more refined. The 220d, added in July 2024, offers the best blend of performance and economy in the diesel range.”
Who it's for: buyers who want diesel economy without the N47's timing chain anxiety.
Highest Risk
B38
PHEV (225e/230e xDrive)
“The plug-in hybrids are the most complex powertrains in the U06 range — a 1.5-litre turbo engine, an electric motor, and a 14.2 kWh battery pack. More components mean more potential failure points, and battery replacement is a significant cost.”
Who it's for: company car drivers and buyers who prioritise electric range over mechanical simplicity.
Most Expensive Failure
230e
xDrive (326 bhp PHEV)
“The most powerful U06 engine — and the most expensive to replace. The B38 engine, electric motor, and battery pack combine for a replacement cost that could exceed £9,500. Battery degradation is the primary long-term concern.”
Who it's for: buyers with warranty cover who want 326 bhp and low company car tax.
Best Value
B38A15P
(218i, 136 bhp)
“The entry-level petrol is the smart buy for most UK buyers — 136 bhp is more than adequate for family duties, the three-cylinder is characterful and efficient, and the engine is simpler than the PHEV or 2.0-litre options. Lower running costs and proven B38 architecture make this the value champion.”
Who it's for: buyers who prioritise running costs and don't need extra power.
Most Overlooked
B38A15P (220i MHEV, 170 bhp + 19 bhp electric)
“The 220i is often overlooked because it's 'just' a three-cylinder — but with 48V mild-hybrid assistance, it produces 170 bhp and 280 Nm of torque, making it quicker than the 218i and more efficient than the 223i. The electric boost fills in the turbo lag and makes city driving a breeze.”
Who it's for: buyers who want the best balance of performance, efficiency, and simplicity.
Engine
Typical Mileage
Common Major Failure
Repair Cost (Specialist)
Replacement Cost (Recon)
Ownership Verdict
Safe Bet -proven three-cylinder.
Solid Choice -MHEV adds complexity but proven.Safe Bet -the most refined petrol.Solid Choice -significantly improved over N47.Watch -battery health is key; warranty essential.EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership VerdictSafe Bet -proven three-cylinder.Solid Choice -MHEV adds complexity but proven.Safe Bet -the most refined petrol.Solid Choice -significantly improved over N47.Watch -battery health is key; warranty essential.
The U06 rule
A £2,800–£6,000 B47 recon against a £12,000–£30,000 Active Tourer sits at 9–50% of the car's value【EM-VERIFIED】. Even on a lower-value example, that's well within our 70% BMW scrap threshold -replacement is almost always viable. The U06's strong retained values mean engine replacement is a repair decision, not a financial one. For PHEV cars, the battery is the bigger long-term consideration.
Key Takeaways
Which U06 Costs Least To Own?
B38 218i -simple three-cylinder, fewer failure modes, cheap parts.
Which U06 Costs Most To Own?
230e xDrive PHEV -battery and electric motor add significant long-term cost risk.
Which U06 Is Best Value?
B47 218d -excellent fuel economy, proven B47 reliability, and strong residual values.
B38
/ B48 Cooling System Leaks
Affected models:
U06 216i, 218i, 220i, 223i (B38/B48 engines).
Typical failure mileage:
40,000–80,000 miles.
Root cause:
The B-family engines (B38, B48) are generally reliable, but they can suffer from coolant leaks from the water pump and plastic cooling system components -a known weakness on BMW's modular engine family.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£600–£1,200
£400–£800
Water pump and hose replacement
Catastrophic (Replacement)
Dealer
Specialist
£5,000–£8,000
£3,500–£6,000
Full engine replacement if overheating caused damage
Our Recommendation
Have the cooling system inspected annually and replace the water pump as preventative maintenance at 60,000 miles -a £400–£800 specialist job is trivial against the £3,500+ engine replacement that follows an ignored coolant leak.
B47
Diesel EGR Cooler Failure
Affected models:
U06 218d, 220d, 223d (B47 engine).
Typical failure mileage:
60,000–120,000 miles.
Root cause:
The B47's EGR cooler can develop internal leaks, allowing coolant to enter the exhaust system. This can lead to reduced performance and, in extreme cases, engine damage. BMW issued recalls for this issue on some models.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£800–£1,500 (recall may cover)
£500–£1,000
EGR cooler replacement
Catastrophic (Replacement)
Dealer
Specialist
£5,000–£8,000
£4,000–£6,500
Full engine replacement if coolant contamination caused damage
Our Recommendation
Check your B47 U06's VIN against any outstanding EGR cooler recalls -if affected, the repair is free. If not, have the EGR cooler inspected at 60,000 miles -a £500–£1,000 replacement is cheap insurance against a £4,000+ engine failure.
U06
PHEV Battery Degradation & Electric Motor Issues
Affected models:
U06 225e xDrive, 230e xDrive (B38 PHEV).
Typical failure mileage:
30,000–80,000 miles (battery degradation).
Root cause:
The 14.2 kWh lithium-ion battery pack will naturally degrade over time, reducing electric-only range. The electric motor adds complexity to the powertrain.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£500–£1,500 (battery health check)
£300–£800 (battery health check)
Battery health check, software updates
Catastrophic (Replacement)
Dealer
Specialist
£8,000–£12,000 (battery replacement)
£6,500–£10,000 (battery replacement)
Full battery pack replacement
Our Recommendation
Have the PHEV battery health checked annually -a £300–£800 inspection is cheap insurance against a £6,500+ battery replacement. If you're buying a used U06 PHEV, get a battery health report before committing.
B38
48V Mild-Hybrid System Issues
Affected models:
U06 220i (B38 MHEV).
Typical failure mileage:
40,000–80,000 miles.
Root cause:
The 48V mild-hybrid system adds complexity -the 48V battery, electric motor, and associated electronics can develop issues. The 48V battery typically has a lifespan of 5–8 years.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£800–£1,500
£500–£1,000
48V battery health check, system diagnostics
Catastrophic (Replacement)
Dealer
Specialist
£3,500–£5,500
£2,800–£4,500
48V battery and/or electric motor replacement
Our Recommendation
Have the 48V system inspected during annual servicing -a £500–£1,000 check is cheap insurance against a £2,800+ system replacement. The mild-hybrid system is a major selling point -protect it.
VariantEngine Code
Used (Supply)
Reconditioned (Supply)
Rebuilt (Supply)
Labour HoursNo Generation variance from the EM_Proprietary_Data baseline figures -U06 Active Tourer shares the FAAR platform with the F40 1 Series, with similar engine-bay access, so costs are inherited directly per the Authority Model, with no divergence note required.
Diesel Variants
Petrol Variants
Scope note: All variants listed are U06 2 Series Active Tourer only. 220i, 223i and 223d feature 48V mild-hybrid technology. 225e xDrive (245 bhp) and 230e xDrive (326 bhp) are plug-in hybrids with 14.2 kWh battery and up to 87 km electric range. 220d was added to the range in July 2024.
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Live FeedBMW 2 Series Active Tourer U06 218d
Leeds
EGR cooler inspection3
enquiries
Updated MonthlyBMW 2 Series Active Tourer U06 220i
LondonCooling system check2
enquiries
Updated MonthlyBMW 2 Series Active Tourer U06 230e
BirminghamBattery health check2
enquiries
Updated MonthlyMost Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Diesel Variants
Petrol Variants
Scope note: All variants listed are U06 2 Series Active Tourer only. 220i, 223i and 223d feature 48V mild-hybrid technology. 225e xDrive (245 bhp) and 230e xDrive (326 bhp) are plug-in hybrids with 14.2 kWh battery and up to 87 km electric range. 220d was added to the range in July 2024.
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,500
reconditioned, supply only
[BMW-QUOTE]
Most Common Failures
Live FeedBMW 2 Series Active Tourer U06 218d
LeedsEGR cooler inspection3
enquiries
BMW 2 Series Active Tourer U06 220i
LondonCooling system check2
enquiries
BMW 2 Series Active Tourer U06 230e
BirminghamBattery health check2
enquiries
Updated MonthlyTrusted U06 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real Active Tourer owners, as part of the Engine Finders network.
Compare U06 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for U06
covering every variant from 216i to 230e xDrive, with supply-only or full supply & fit available nationwide.
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