BMW N47 Diesel Injectors
Buy BMW N47 diesel injectors, OEM tested and calibrated to original specifications. All injectors include 12-month warranty and are in stock for fast UK delivery.
0 compatible injectors • OEM Tested • 12-Month Warranty
Remanufactured Injector stocks BMW N47 diesel injectors tested to OEM specifications. Each N47 injector includes new seals, nozzles, and 12-month warranty. UK-based specialists with same-day dispatch. Find your exact part below.
This page covers injector problems, symptoms, and verified solutions for N47 engines.
Used by UK garages daily
Every injector is tested before dispatch — if the fault persists, you're covered by our 12-month warranty.
For N47 engines, most issues are confirmed with testing before replacement.
What happens next
Take your time — we're here when you're ready.
The BMW N47 is a 2.0-litre four-cylinder turbodiesel engine that powered millions of BMW vehicles from 2007 to 2014. Known for its efficiency and torque, the N47 became infamous for timing chain issues that often led to injector seat damage. Our remanufactured N47 injectors are precision-tested to restore the smooth, quiet operation this engine was designed to deliver.
Vehicles Using the N47 Engine
BMW 116d / 118d / 120d
1 Series (E81/E87/F20)
2007-2015
BMW 316d / 318d / 320d
3 Series (E90/E91/F30/F31)
2007-2015
BMW 520d
5 Series (E60/F10)
2007-2014
BMW X1 xDrive18d / xDrive20d
X1 (E84)
2009-2015
BMW X3 xDrive20d
X3 (F25)
2010-2014
Common N47 Injector Problems
Timing chain stretch causing injector seat warping and compression loss
Piezo element degradation in high-mileage units leading to misfires
Carbon buildup around injector tips causing poor spray patterns
Return line seal failure causing diesel leaks into engine bay
Injector coding loss after battery replacement or ECU updates
Available BMW N47 Injectors
No injectors currently listed for the N47 engine code.
Browse all BMW injectors →Why Remanufactured Injectors Are Recommended for N47
N47 injectors must be coded to the DME (engine management) using BMW ISTA or equivalent diagnostic tools. We recommend replacing all four injectors simultaneously on high-mileage engines, as individual failure often indicates system-wide wear. Always replace copper sealing washers and inspect return lines during installation.
The BMW N47 engine requires injectors calibrated to specific flow rates and spray patterns. At Remanufactured Injector, our technicians test every N47 injector to original manufacturer specifications using OEM-grade diagnostic equipment.
BMW N47 Injector Cost
BMW N47 diesel injector replacement cost UK ranges from £150 to £400 per injector for remanufactured units. The N47 engine uses precision-calibrated injectors that require exact flow rates and spray patterns.
Testing N47 injectors costs £20 each and confirms which specific injector is causing problems. Common N47 symptoms like rough idle, black smoke, or poor fuel economy often stem from just one faulty injector.
Our remanufactured N47 injectors are tested to BMW original specifications with new seals, nozzles, and 12-month warranty included. Same performance as new, significantly lower cost.
When to Test vs When to Replace
Test Injectors When...
- • Engine warning light appeared but car still runs
- • Fuel economy has dropped noticeably
- • Rough idle or hesitation on acceleration
- • You want to confirm which injector is faulty before buying
- • Garage quotes full set replacement but you want a second opinion
Replace Injectors When...
- • Testing has confirmed injector failure
- • Visible damage, leaks, or Black Death carbon buildup
- • High mileage (150,000+ miles) and multiple symptoms
- • Previous repair attempt failed
- • Vehicle is undriveable or will not start
What Most Customers Choose
Testing first. At £20 per injector, testing identifies exactly which unit needs replacing — saving an average of £300-£600 by avoiding unnecessary full-set replacement. If testing confirms failure, we credit the test cost against your injector purchase.
Common Questions
Will this fix my problem?
If your issue is caused by a faulty injector, yes. Our injectors are tested to OEM specifications and will restore proper fuel delivery. If you're unsure, we recommend testing first — it's only £20 per injector and confirms exactly what's wrong.
What if testing shows they're OK?
That's good news — it means your injectors aren't the problem. You've spent £80 to potentially save £600+ on unnecessary parts. We'll help you identify other possible causes based on your symptoms.
How fast is delivery?
Next working day delivery on orders before 2pm (UK mainland). Most items ship same day from our UK warehouse. You'll receive tracking details by email once dispatched.
Same decision most professional mechanics make.
What You Get
No irreversible steps until results are confirmed.
BMW N47 Injector FAQs
Content reviewed for accuracy in 2026
Other BMW Engine Codes
Common Problems with BMW N47 Injectors
The BMW N47 engine commonly experiences injector issues related to timing chain stretch affecting injector seat alignment, piezo element degradation at high mileage, and carbon buildup from the EGR system. The N47 uses precision common rail technology operating at 1800-2500 bar – even minor contamination causes spray pattern issues. Professional testing identifies exactly which injector is failing before expensive replacements.
Symptoms of Failing BMW N47 Injectors
Failing BMW N47 injectors typically cause: rough idle or vibration at standstill, excessive white or black smoke on startup, poor acceleration and "limp mode" activation, increased fuel consumption (10-20% worse), engine warning light with P0201-P0204 fault codes, hard starting especially when cold, and diesel knock or rattling sounds. BMW N47 engines often show vibration at idle before other symptoms appear. If you notice any of these symptoms, professional injector testing (£20/injector) can confirm the diagnosis before committing to replacement.
Popular BMW Models
Browse Bmw diesel injectors by vehicle model.
Bmw 3 Series
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Bmw 320d
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Bmw 520d
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Bmw X3
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Related BMW Resources
BMW B47 (N47 replacement)
Improved timing chain design
BMW 320d model-specific guide
All 3 Series diesel info
BMW injector troubleshooting tips
Expert diagnosis guides
Shop N47 replacement injectors
Tested & coded ready
This guide is updated regularly to reflect the latest injector data and testing standards.
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