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BMW N13B16A Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 1.6-litre turbocharged petrol fitted to entry-level 2011-2016 BMW models, with reconditioned units from £1,200 . As part of the PSA-BMW Prince engine family, the BMW N13B16A shares well-documented timing chain and fuel pump vulnerabilities that drive consistent UK replacement demand.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£400
Reconditioned from
£1,200
Rebuilt from
£2,000
GB
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Key Specs
BMW N13B16A - Specifications at a Glance
Engine Code
N13B16A
Fuel
Petrol
Configuration
1.6L inline-4, single turbo (Prince engine family)
Power Output(s)
75 kW (102 hp) to 100 kW (136 hp)
Years Produced
2011-2016
UK Models Fitted
6 BMW models - full list in Compatibility below
Replaced
N/A (Introduced as new entry-level turbo petrol)
Replaced By
B38A15A (1.5L 3-cylinder turbo)
Most Common Failure
Timing chain stretch and HPFP failure
Reconditioned Price Range
£1,200-£2,200 supply-only
Vetted UK specialists for N13B16A replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which BMW Models Use the N13B16A-
| Model | Generation/Chassis | Badge(s) | Years | Link |
|---|---|---|---|---|
 BMW 1 Series | F20/F21 | 114i, 116i | 2011-2015 | |
 BMW 2 Series | F22/F23 | 216i | 2014-2016 | |
 BMW 3 Series | F30/F31 | 316i | 2012-2015 | |
 BMW 4 Series | F32/F33 | 416i | 2013-2016 | |
 BMW X1 | E84 | sDrive16i | 2012-2015 | |
| BMW Z4 | E89 | sDrive16i | 2012-2016 |
02
BMW 2 Series
03
BMW 3 Series
04
BMW 4 Series
05
BMW X1
06
BMW Z4
CROSS-BRAND
N13B16A is documented across 6 BMW applications spanning 1 Series, 2 Series, 3 Series, 4 Series, X1, Z4. Registration lookup confirms the exact suffix before quotes are sent.
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Prices
BMW N13B16A Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £400-£900 | £920-£1,615 | 3-6 months |
Reconditioned | £1,200-£2,200 | £1,720-£2,915 | 12-24 months |
Rebuilt | £2,000-£3,500 | £2,520-£4,215 | 12-24 months |
The final BMW N13B16A engine cost is heavily influenced by the condition of the timing chain assembly and the high-pressure fuel pump (HPFP). Because the N13B16A shares its Prince engine architecture with PSA units, opting for a reconditioned BMW N13B16A ensures these high-wear components are addressed upfront. For a full breakdown of how these factors influence your quote, see our full reconditioned engine cost guide.
Labour Guide
Fitting a BMW N13B16A typically takes 8-11 hours at £65-£75/hr (independent specialist) - confirm exact labour when comparing quotes .
Price Factors
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Common Problems
BMW N13B16A Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the N13B16A, based on real-world data and verified failure patterns.
Verified issue focus: Timing chain stretch and HPFP failure.
1. Timing Chain Stretch and Tensioner Failure - 2011-2016 models (Prince engine family trait)
1. Timing Chain Stretch and Tensioner Failure - 2011-2016 models (Prince engine family trait)
Typical onset:
60,000-100,000 miles
What happens:
As a member of the PSA-BMW Prince engine family, the BMW N13B16A suffers from premature timing chain stretch and tensioner wear. This typically presents as a distinct rattling noise from the front of the engine on cold starts. If ignored, the chain can skip teeth or snap, resulting in catastrophic valve and piston interference.
Repair vs replace:
A standalone timing chain kit replacement costs £600-£1,200 . However, if the chain has already jumped or snapped, a full BMW N13B16A engine replacement is the only viable route. Read our full timing chain failure guide.
Read more about this issue
2. High-Pressure Fuel Pump (HPFP) and Turbo Wastegate Rattle - 60k-100k miles
2. High-Pressure Fuel Pump (HPFP) and Turbo Wastegate Rattle - 60k-100k miles
Typical onset:
60,000-100,000 miles
What happens:
The HPFP is a known weak point on the Prince engine family, often failing internally and causing lean misfires, limp mode, or extended cranking times. Additionally, the turbocharger wastegate actuator pivot wears, creating a metallic rattling sound under light throttle loads.
Repair vs replace:
HPFP replacement ranges from £400-£800 . Turbo wastegate repair or replacement can cost £600-£1,200. Neither failure typically writes off the engine block itself, making a used or reconditioned swap highly effective if caught before secondary damage occurs.
Read more about this issue
Post-2014 revisions of the N13B16A received updated timing chain guides and revised HPFP internals, making catastrophic failures less frequent than in early 2011-2013 builds, though the fundamental Prince engine vulnerabilities remain .
Compare rebuilt BMW N13B16A prices with the failure already addressed
Engine Variants
How to Confirm You Have the N13B16A
The N13B16A can be identified by the engine code stamped on the block near the bell housing, listed on your V5C registration document (Section D.2), or via a VIN decoder. It is most commonly confused with the N18B16A (the higher-output Mini/BMW 1.6T variant) and the newer B38A15A (the 1.5L 3-cylinder turbo that eventually replaced it). Fitting the wrong revision will result in ECU mapping mismatches, incorrect turbo plumbing, and mounting point discrepancies, as the N13B16A has specific calibration and hardware requirements for its host chassis.
Not sure which engine your car has- Enter your registration above - we'll confirm your exact BMW N13B16A fitment before any quotes are sent.
Easily Confused
N46B20
- The N46 it replaced was BMW’s previous 2.0-litre petrol family; the N20B20 introduced direct injection and a twin-scroll turbo for significantly better efficiency, but brought new timing chain vulnerabilities.
Alternative / Next-Gen Code
B48B20A
- The B48B20A resolved the N20's biggest weaknesses by moving the timing chain to the front of the engine and introducing a much more robust piston design, making it far more reliable.
Related JLR Variants
N20D20
- The diesel variant of the N20 family; shares the same modular block architecture but uses a completely different cylinder head, fuel system, and turbo setup.
Confirm the exact N13B16A fitment
Not sure which engine your car has- Enter your registration above - we'll confirm your exact BMW N13B16A fitment before any quotes are sent.
Buying Guide
Buying a Replacement BMW N13B16A - What to Choose
Choosing the right replacement route depends on your budget, risk tolerance, and ownership goals. Here's a breakdown of your options.
Used:
A used BMW N13B16A is only advisable for lower-value host vehicles and must come with documented proof that the timing chain assembly was replaced before the 60,000-mile mark. Without this history, the risk of inheriting the same premature Prince engine failure is high. Explore our vetted used engine network.
Reconditioned:
This is the most recommended route for the N13B16A. A proper reconditioning process will systematically replace the timing chain, tensioners, guides, and HPFP, directly addressing the engine's most common failure points while restoring factory compression. View reconditioned BMW N13B16A options.
Rebuilt:
A full rebuild is justified if the host vehicle is a higher-mileage 3 Series or 4 Series where long-term ownership is planned. An upgraded rebuild should include a reinforced timing chain kit, updated HPFP, and a remapped ECU to ensure longevity. Compare rebuilt BMW N13B16A specialists.
Supply & Fit Line:
Choosing a supply-and-fit service through our network ensures the engine is installed by a specialist familiar with the N13B16A's Prince engine electronics, backed by a nationwide warranty. Learn more about supply and fit.
Vehicle Value Note:
The N13B16A is typically found in vehicles valued between £3,000 and £10,000. Because a full reconditioned replacement can cost upwards of £1,720 fitted, the replacement cost is generally well within the vehicle's value for mid-range examples. However, on older, higher-mileage E84 X1 or early F20 examples approaching the £3,000 mark, evaluate scrap value before committing if the lowest viable replacement cost exceeds approximately 60% of the vehicle's current market value .
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Related Engines
Engines Related to the BMW N20B20
Explore engines that are closely related to the BMW N13B16A, including its predecessor, successor, and key family variants.
Predecessor
N46B20
- The N46 it replaced was BMW’s previous 2.0-litre petrol family; the N20B20 introduced direct injection and a twin-scroll turbo for significantly better efficiency, but brought new timing chain vulnerabilities.
Successor
B48B20A
- The B48B20A resolved the N20's biggest weaknesses by moving the timing chain to the front of the engine and introducing a much more robust piston design, making it far more reliable.
Sibling
N20D20
- The diesel variant of the N20 family; shares the same modular block architecture but uses a completely different cylinder head, fuel system, and turbo setup.
FAQ
BMW N20B20Frequently Asked Questions
Question 1How much does a BMW N20B20 engine replacement cost-
A reconditioned BMW N20B20 engine typically costs between £2,500 and £4,000 for supply only, or £3,150 to £4,780 fully fitted by an independent specialist. Compare N20B20 engine prices from vetted UK suppliers
- Prices vary based on whether the reconditioning process includes the updated metal timing chain guides and revised pistons.
- Labour typically adds 10-14 hours of workshop time to the final invoice.
Question 2What is the most common BMW N20B20 engine problem-
The most documented failure is the timing chain guide shattering, typically occurring between 60,000 and 100,000 miles, which can lead to catastrophic bottom-end failure. Get quotes for a rebuilt N20B20 with the chain guides already addressed
- The plastic guides become brittle and shatter, with debris blocking the oil pickup strainer and starving the engine of oil.
- Early warning signs include a faint rattling noise on cold starts or a sudden drop in oil pressure.
Question 3Which BMW models use the N20B20 engine-
The BMW N20B20 is fitted to a wide range of models including the 1 Series (F20), 2 Series (F22), 3 Series (F30), 4 Series (F32), 5 Series (F10), X1, X3, and Z4. Confirm your exact N20B20 fitment with our free reg lookup
- It was produced from 2011 to 2017 as BMW’s primary 2.0-litre turbocharged petrol workhorse.
- Always verify your specific sub-code, as the 28i, 20i, and 18i variants use different turbo hardware and ECU maps.
Question 4Should I buy a used or reconditioned N20B20 engine-
A reconditioned BMW N20B20 is strongly recommended over a used unit due to the known timing chain guide and early piston ring land failure points. View reconditioned N20B20 engine options with 12-month warranties
- A proper reconditioning process must include the installation of updated metal timing chain guides and, for early blocks, upgraded pistons.
- Used units rarely come with documented proof that these critical preventative repairs have been performed.
Question 5What is the difference between the N20B20 sub-codes-
The N20B20 family includes sub-codes A/O0 (245hp/28i), C/D (184hp/20i), and B/U0 (135-160hp/18i), which differ by turbocharger size, boost pressure, and ECU calibration. Enter your registration above to guarantee exact N20B20 sub-code fitment
- Fitting a lower-output engine into a higher-output host (or vice versa) without swapping the turbo and ECU will result in severe running issues or limp mode.
- Physical mounting points are largely shared, but the peripheral hardware is strictly sub-code specific.
Question 6How do I confirm my car has the N20B20 engine code-
You can confirm your engine code by checking the VIN plate under the bonnet, reviewing your V5C registration document, or looking for the code stamped on the engine block near the bell housing. Enter your registration above to guarantee exact N20B20 fitment ═══════════════════════════════════════════════════════════════
- It is commonly confused with the older N46B20 or the newer B48B20A.
- Fitting the wrong revision can lead to ECU incompatibility and mounting misalignment.
Compare BMW N20B20 Engine Prices Today
Get a free, no-obligation comparison of BMW N20B20 engine prices today. Our network provides quotes specific to your exact engine code and sub-code, and our registration lookup confirms your vehicle's fitment before any quotes are sent. With reconditioned N20B20 units starting from £2,500, comparing takes two minutes and could save you hundreds on your replacement.
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Minimum 12-Month Warranty
Minimum 12-month warranty on reconditioned and rebuilt options
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