BMW 118d Engine Replacement - Rebuilt & Reconditioned Units from £1,763
Compare BMW 118d replacement engine prices from trusted UK suppliers. Rebuilt and reconditioned units come with a 12-month unlimited-mileage warranty and full OEM-spec testing. Save up to 60% versus a main dealer quote.
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BMW 1 Series 118d Specialists
Expert Solutions for Every 1 Series 118d - 118d SE to 118d M Sport
Need a reliable replacement engine for your BMW 1 Series 118d?
Engine Finders specializes in 1 Series 118d engines with solutions for common N47D20C timing chain tensioner failures.
- ✔ 1 Series 118d-Specific Engine Types - Addressing timing chain rattle in N47D20C variants
- ✔ Precision-Tuned for 1 Series 118d - Correct calibration for Bosch EDC17C06 engine management
- ✔ 1 Series 118d Pricing Advantage - Save up to £800 on common timing chain replacement
BMW 1 Series 118d Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for F20/F21 (2011-2019).
Includes reinforced timing chain tensioners for N47D20C failure prevention.
Complete rebuild with updated EGR cooler to combat common diesel failures.
Restored with new injectors and swirl flap delete for improved reliability.
Plug-and-play units with correct ECU mapping for F20/F21 chassis.
Performance-tuned with upgraded turbo actuator to prevent limp mode.
Low-mileage units with full service history and timing chain inspection.
BMW 1 Series 118d Compatible Engine Codes - Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your BMW 1 Series 118d Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 1 Series 118d replacement engines. From the N47D20C diesel to B47D20A variants, we address failures specific to your 118d - whether you’re battling EGR cooler cracks unique to F20 chassis 118d models or premature timing chain wear in pre-2015 units, Engine Finders delivers precision-engineered solutions fast.
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✔ 1 Series 118d-Specific Timing Chain Solutions
We replace the N47D20C tensioner with reinforced components, addressing BMW Service Bulletin SIB 11 03 10 failures that disproportionately affect 118d models (2011-2015) due to higher boost calibration versus 116d variants.
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✔ 1 Series 118d EGR System Expertise
Our reconditioned N47D20B engines include updated EGR coolers (OEM 11727834941) specifically calibrated for 118d ECU mapping, resolving the carbon buildup issues common in E87 chassis 118d (2007-2011) but less frequent in 114d due to lower power output.
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✔ B47D20A Turbo Actuator Fixes
For 2015-2019 F20 118d owners, we install revised turbo actuators (OEM 17228648403) known to fail under the 118d’s specific torque curve - a failure pattern not seen in the lower-boost 116d using the same engine block.
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✔ B47D20B Glow Plug & ECU Calibration
M Sport 118d models (2015-2019) suffer cold-start failures due to unique DDE8 ECU maps. We reflash ECUs and install upgraded glow plug modules (OEM 12488531470) to restore factory reliability - a solution irrelevant to petrol 118i variants.
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✔ N47D20C Swirl Flap Deletion
We permanently delete failure-prone swirl flaps (OEM 11617833075) in pre-LCI 118d engines, reprogramming ECU to eliminate fault codes - a critical fix for 118d but unnecessary in later B47 engines or petrol 116i models.
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✔ B47D20D Crankcase Ventilation Upgrade
Late F20 118d models (2015-2019) with B47D20D engines suffer CCV oil leaks. We install reinforced CCV valves (OEM 11158610420) and updated breather hoses - addressing a failure mode specific to 118d’s higher compression ratio versus 114d.
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✔ 118d-Specific Injector Coding
Unlike generic rebuilders, we code injectors (OEM 13648618405) to your 118d’s exact Bosch EDC16/17 ECU - critical for N47/B47 variants where incorrect coding causes limp mode, a problem absent in non-diesel 1 Series trims.
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✔ UK-Wide 118d Specialist Network
We connect you only with suppliers experienced in 118d-specific diagnostics and fitment - ensuring correct engine mounts (OEM 11817843049) and ancillary alignment for F20/E87 chassis, avoiding generic “BMW engine” misfits.
Rated 4.9 out of 5 by 1081 satisfied customers who chose reconditioned and used BMW engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
BMW 1 Series 118d Engines for Sale | Engine Finders
Engine Finders connects UK 1 Series 118d owners with vetted specialists for reliable, reconditioned engines - whether you’re battling N47D20C timing chain failures or B47D20A EGR cooler cracks, we deliver precision-engineered solutions fast.
BMW 1 Series 118d Replacement Engines
The 1 Series 118d spanned two generations: E87 (2007-2011) with N47D20B engines prone to swirl flap failures, and F20 (2011-2019) with N47D20C/B47D20A variants suffering timing chain and EGR issues. BMW Service Bulletin SIB 11 03 10 specifically addresses premature chain wear in N47 engines (2011-2015), while B47 units (2015-2019) face turbo actuator and NOx sensor faults. Unlike the 116d, the 118d’s higher boost pressure accelerates component wear - demanding rebuilds with reinforced OEM parts like tensioner 11347585994 and EGR cooler 11727834941.
BMW 1 Series 118d Models & Engines Codes
Engine codes evolved with each 118d generation, each with distinct failure patterns:
- N47D20B: 2.0L diesel (E87, 2007-2011). Known for swirl flap motor failures and EGR clogging due to unique Bosch EDC16C35 calibration.
- N47D20C: 2.0L diesel (F20, 2011-2015). Infamous for timing chain tensioner wear under higher boost vs. 116d - addressed in BMW Bulletin SIB 11 03 10.
- B47D20A: 2.0L diesel (F20 LCI, 2015-2019). Suffers turbo actuator limp mode and NOx sensor errors; requires ECU reflash for 118d-specific torque maps.
- B47D20B: 2.0L diesel (F20 M Sport, 2015-2019). Higher boost causes glow plug module (12488531470) failures and cold-start issues absent in standard 118d.
- B47D20D: 2.0L diesel (F20 late, 2015-2019). Revised cam profiles lead to VANOS solenoid (11368615338) wear and CCV oil leaks - unique to high-mileage 118d units.
Unlike petrol 118i models, all 118d variants share diesel-specific failure modes requiring specialized rebuilds - never interchange engine codes across fuel types.
Buy Used and Second-Hand BMW 1 Series 118d Engines
For 118d owners, engine type matters: Used units suit low-mileage E87 models; Reconditioned/Rebuilt engines are essential for N47D20C/B47D20A variants to address known failures.
- Used: Best for E87 118d (2007-2011) with verified low mileage and intact swirl flaps.
- Reconditioned: Ideal for F20 118d (2011-2015) - includes new tensioners and EGR valves to preempt N47 failures.
- Remanufactured: Critical for B47 118d (2015-2019) - full rebuild with updated turbos and ECU calibration for 118d-specific maps.
Avoid generic “BMW diesel engines” - only 118d-specific rebuilds address variant-unique boost levels and ECU parameters.
BMW 1 Series 118d Engines in Stock
Our UK-reconditioned 118d engines include critical upgrades targeting model-specific failures:
- N47D20C: Reinforced timing chain kit (tensioner 11347585994, guides 11317567231).
- B47D20A: Updated EGR cooler (11727834941) and reprogrammed DDE8 ECU for 118d torque curves.
- B47D20B: Upgraded glow plug module (12488531470) and turbo actuator (17228648403) for M Sport reliability.
Every unit is bench-tested for smoke-free operation, correct ECU adaptation, and MoT compliance - specifically calibrated for 118d chassis codes.
Warranty for Replacement BMW 1 Series 118d Engines
All rebuilt/reconditioned 118d engines come with a 12-month warranty covering major components:
- Covers block, head, turbo, and ancillaries for N47/B47 variants.
- Excludes wear items like belts and hoses; timing chains covered only if upgraded parts installed.
- Warranty valid only with proof of professional installation and oil service records.
Engine Finders is a price comparison platform - warranty terms are set by individual suppliers. Always confirm coverage for 118d-specific components like EGR coolers and turbo actuators.
Expert Tips for Choosing the Right Engine for Your BMW 1 Series 118d
BMW 1 Series 118d Engine Types Explained
- Used: Best for E87 118d w/ low miles & intact swirl flaps (pre-2011).
- Reconditioned: Fixes N47D20C timing chains in F20 models.
- Remanufactured: Essential for B47D20A - includes ECU reflash for 118d maps.
- Avoid generic rebuilds - 118d needs boost-specific component upgrades.
BMW 1 Series 118d Replacement Engine Cost in the UK
- N47D20C (2011-15): £1,700-£2,200 - cheaper due to known chain issues.
- B47D20A (2015-19): £2,800-£3,500 - higher cost for turbo/EGR fixes.
- M Sport B47D20B: £3,200+ - needs glow plug & actuator upgrades.
- Save £800+ via Engine Finders - direct supplier quotes, no middlemen.
Finding the Right BMW 1 Series 118d Engine
- Check VIN: 8th digit “4” = N47D20; “C” = B47D20 for F20 118d.
- E87 (2007-11) uses N47D20B - don’t fit F20 engines (mount mismatch).
- Verify chassis: F20 LCI (2015-19) requires B47D20A/B - not N47.
- Match ECU code: Bosch EDC16 (N47) vs DDE8 (B47) - not interchangeable.
BMW 1 Series 118d Petrol vs Diesel Engines
- 118d diesel only - no petrol variant exists (unlike 118i).
- N47/B47 diesels: 45-55 MPG but EGR/chain issues in high-mileage units.
- ULEZ-compliant only if B47 (Euro 6) - N47 (Euro 5) incurs charges.
- Best for motorway drivers - town use clogs EGR faster in 118d.
Quality Assurance & Warranty
- N47 rebuilds must include tensioner 11347585994 ().
- B47 units require new EGR cooler 11727834941 - common failure point.
- 12-month warranty standard - confirm turbo/chain coverage in writing.
- Engine Finders vets suppliers - ask for bench-test reports pre-purchase.
Compare & Save on BMW 1 Series 118d Engines
- Get 3+ quotes - prices vary £500+ for same 118d engine code.
- Reject N47D20C without chain kit receipt - known 60k-mile failure point.
- Choose suppliers offering ECU adaptation - critical for B47 118d fitment.
- Engine Finders saves avg. £800 - direct quotes beat main dealer 3x over.
BMW 1 Series 118d Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 1 Series 118d engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. Diagnostic & Disassembly: Experts scan for limp mode codes (P20EE, P2463) specific to 118d EGR/NOx systems. Engine is removed using F20-specific mounts (OEM 11817843049), then fully stripped. Critical wear areas: N47 chain guides, B47 turbo actuators.
2. Ultrasonic Cleaning & Inspection: Block/head cleaned in diesel-safe solution. Cylinder bores measured for taper - N47 often shows wear at 80k miles. Crankshaft journals checked to 0.01mm tolerance. Any B47 swirl flap residue triggers full EGR delete.
3. Component Replacement: N47 gets chain kit (tensioner 11347585994, guides 11317567231). B47 receives updated EGR cooler (11727834941) and turbo actuator (17228648403). All gaskets are Elring - no aftermarket seals.
4. Precision Assembly: Torque sequence critical: N47 head bolts at 30Nm + 90° + 90°; B47 at 25Nm + 180°. Timing set with BMW tool 11 3 470 - misalignment causes VANOS rattle. Oil pump clearance set to 0.05mm - loose pumps starve turbos in 118d.
5. ECU Coding & Adaptation: Bosch EDC16 (N47) or DDE8 (B47) flashed with 118d-specific maps. Injector codes inputted - mismatched codes cause smoke. Swirl flap deletes require ECU recoding to avoid limp mode. Throttle adaptation performed via ISTA.
6. Bench Testing & Quality Control: Engine run for 2 hours on stand - checks for leaks, smoke, abnormal noise. Compression test: min. 18 bar per cylinder. Oil pressure verified at 2000rpm (min. 2.5 bar). Only MoT-compliant, smoke-free units shipped to UK customers.