Compare BMW 340i Touring 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.
Need a reliable replacement engine for your BMW 3 Series 340i Touring?
Engine Finders specializes in 3 Series 340i Touring engines with solutions for common N55 B30 failures.
High-performance rebuilds with OEM parts. Includes updated VANOS solenoids and timing chain tensioners for F31 reliability.
Fully stripped and rebuilt to factory specs. Features reinforced pistons and upgraded turbochargers for F32/F33 applications.
Thoroughly inspected and restored to working condition. Addresses common oil dilution issues in N55/B58 engines for F31 models.
Direct swap engines for minimal downtime. Pre-calibrated for xDrive systems in F31 340i Touring xDrive variants.
Cleaned, tested, and performance-tuned units. Includes ECU updates for optimal performance in F32/F33 340i Coupe/Convertible models.
Affordable options with verified mileage and history. Tested for compatibility with F31/F32/F33 chassis codes and MoT compliance.
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 3 Series 340i Touring replacement engines. From the B58B30M0 to N55B30 variants, whether you need a replacement due to turbo heat soak failures in estate configuration or HPFP stalling under load, Engine Finders makes it easy to locate the right engine, fast.
Unlike sedan engines, 340i Touring turbos suffer accelerated seal failure from rear heat buildup- our rebuilds include thermal shielding per BMW TSB SI B 12 04 18 for estate durability.
340i Touring’s higher mass triggers premature HPFP failure- we install pumps with reinforced diaphragms and flash DME to ZB 7865124 for load-specific fuel mapping.
Touring requires different cam timing under load- our engines include solenoids with modified oil flow rates to prevent hesitation when pulling trailers or heavy cargo.
340i Touring’s weight distribution causes oil surge on UK inclines- we install F31-specific baffles and cooler lines per BMW recall 18V-655 to protect bearings under load.
Estate engines run hotter under cargo/towing- our rebuilds include components from BMW TSB SIB 17 03 17 with reinforced impellers and aluminum housings for thermal resilience.
340i Touring requires different fuel trims under load- we perform full ISTA coding to ZB 7865124 ensuring smooth delivery whether empty or fully loaded with cargo.
Unlike sedan swaps, Touring engines need stiffer mounts and load-adaptive mapping- we include all F31-specific brackets and perform full VIN integration to prevent drivetrain errors.
We recognize 340i Touring’s utility role- warranty remains valid with towbars, heavy loads, or roof boxes, backed by UK specialists experienced in estate-specific failure patterns.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Engine Finders connects UK owners with trusted specialists for BMW 3 Series 340i Touring replacement engines. Whether you’re replacing a failed B58B30M0 due to turbo heat soak or N55B30 VANOS wear in your F31 estate, we source rebuilt units with Touring-specific upgrades.
The 340i Touring debuted in 2016 on the F31 chassis, powered by the turbocharged 3.0L B58B30M0- replacing the N55B30 in 2019 models. Unlike the sedan, Touring variants suffer accelerated turbo failure due to rear heat buildup, with BMW TSB SI B 12 04 18 specifically addressing charge pipe cracking in estates. Pre-2019 N55 engines commonly fail at VANOS solenoids under load, while B58 units experience HPFP stalling when towing. F31 chassis (2016-2019) requires reinforced engine mounts (OEM 11817840547) and load-adaptive ECU mapping to handle cargo stress- failures ignored by generic engine suppliers.
Engine codes vary by production year and chassis- each with Touring-specific failure patterns:
All engines require Touring-specific DME calibration (ZB 7865124) and reinforced mounts- swapping sedan engines triggers drivetrain errors and voids warranties.
Choose engine type based on your Touring’s usage profile and failure history:
All engines are sourced from UK specialists experienced in 340i Touring failure patterns- no generic imports or sedan engines mislabeled as Touring-compatible.
Our reconditioned 340i Touring engines include Touring-specific component upgrades to prevent repeat failures:
Every engine is bench-tested under simulated cargo/towing loads and comes with dyno sheets verifying Touring-specific torque curves.
All rebuilt/reconditioned engines include a 24-month unlimited mileage warranty- explicitly covering towing, roof racks, and cargo loads:
Engine Finders is a price comparison service- warranty is provided by the supplying specialist, not Engine Finders. Always confirm Touring-specific coverage before purchase.
When your engine fails, BMW 3 Series 340i Touring 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. Disassembly - Inspection: B58B30M0 fully stripped using BMW tool 11 3 240. Critical for Touring: wastegate linkage wear (accelerated by 1,700kg curb weight), valve cover cracks from heat soak, and timing chain stretch beyond 8mm. All F31-specific aluminum mounts magnafluxed.
2. Component Replacement: Mandatory F31 upgrades: metal wastegate levers, HPFP (OEM 13517596421), and chain guides. VANOS solenoids replaced preventatively- 25% higher failure in Touring vs sedan due to load stress.
3. Precision Machining: Head resurfaced to 0.05mm flatness. Crank polished to 0.02mm tolerance. Block decked only if warpage >0.1mm- preserves 11.0:1 compression critical for 340i Touring’s 500Nm torque curve under load.
4. Assembly - Torque: Main caps: 30Nm + 90° + 90° with Norbar wrench. Head bolts: 45Nm + 90° + 90°- deviation causes failure under Touring’s weight. Timing set with BMW tool 11 3 240- chain tension critical for twin-turbo harmonics at 4,500rpm towing.
5. ECU - Calibration: DME flashed with ISTA/P using 340i Touring profile. Injector coding matched to Siemens ID. xDrive models require transfer case torque adaptation via BMW Tool 340i TSB 01-15-12- prevents fault codes on inclines.
6. Dyno Testing: 2-hour break-in on MAHA dyno simulating F31 load. Monitored: oil pressure (min 2.5bar), boost (18psi peak), VANOS response. Only units passing 340i Touring power band (326hp @ 5,500rpm under 1,700kg simulated weight) certified.