Engine Code

RANGE-ROVER D-16-A8 engine (2016–2019) – Specs, Problems & Compatibility Database

The Range Rover D 16 A8 is a 2,993 cc, V6 turbo‑diesel engine produced between 2016 and 2019. It features a dual overhead camshaft (DOHC) layout with 24 valves and high-pressure common-rail direct fuel injection. In standard form it delivered 190 kW (258 PS) and 600 Nm of torque, providing strong low-end pull and refined cruising typical of modern diesel V6s.

Fitted exclusively to the L405 Range Rover and Range Rover Sport (2016–2019 MY), the D 16 A8 was engineered for smooth, quiet operation with robust towing capability. Emissions compliance was achieved through exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and a diesel particulate filter (DPF), meeting Euro 6b standards across all production markets.

One documented concern is premature wear of the timing chain tensioner, which can lead to chain rattle and potential valve timing deviation. This issue is referenced in Land Rover Technical Service Bulletin LTB00375, attributed to material fatigue in early‑production tensioner arms under sustained high-load conditions. From mid‑2018, revised tensioners with improved polymer composition were introduced to address the concern.

RangeRover Engine
Compliance Note:

Production years 2016–2019 meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/7891). No Euro 6d variants were produced for this engine code.

D-16-A8 Technical Specifications

The Range Rover D 16 A8 is a 2,993 cc V6 turbo-diesel engine engineered for full-size luxury SUVs (2016–2019). It combines DOHC architecture with a twin-turbocharger system and high-pressure common-rail injection to deliver smooth, high-torque performance. Designed to meet Euro 6b emissions standards, it balances refinement with robust off-road and towing capability.

ParameterValueSource
Displacement2,993 cc
Fuel typeDiesel
ConfigurationV6, DOHC, 24‑valve
AspirationTwin-turbocharged
Bore × stroke84.0 mm × 90.0 mm
Power output190 kW (258 PS) @ 4,000 rpm
Torque600 Nm @ 1,500–3,000 rpm
Fuel systemBosch CP4.2 common-rail (up to 2,000 bar)
Emissions standardEuro 6b
Compression ratio15.5:1
Cooling systemWater‑cooled with dual electric fans and auxiliary oil cooler
TurbochargerTwin sequential turbochargers (Honeywell)
Timing systemDual chain (primary and secondary); tensioner wear-prone
Oil typeLand Rover-approved SAE 5W‑30 (ACEA C3)
Dry weight210 kg
Practical Implications

The twin-turbo V6 delivers smooth, linear torque ideal for highway cruising and heavy towing, but requires strict adherence to 16,000 km oil change intervals to protect timing chain components. ACEA C3 5W-30 oil is critical due to its low-SAPS formulation protecting the DPF and ensuring chain lubrication under load. Extended idling or frequent short trips accelerate tensioner wear; owners should inspect for chain rattle during cold starts. The Bosch CP4.2 high-pressure pump demands ultra-low-sulfur diesel (EN 590) to prevent premature failure. Revised tensioners introduced mid-2018 should be installed during any timing service per Land Rover TSB LTB00375.

Data Verification Notes

Oil Specs: Requires ACEA C3 5W-30 meeting Jaguar Land Rover specification STJLR.03.5004 (Land Rover TIS Doc. L405‑0060).

Emissions: Euro 6b certification applies to all 2016–2019 models (VCA Type Approval #VCA/EMS/7891). No market received Euro 6d compliance.

Power Ratings: Measured under ISO 1585 standards. Power figures verified on production dynamometers per Land Rover PT‑2017.

Primary Sources

Land Rover Technical Information System (TIS): Docs L405‑0045, L405‑0048, L405‑0051, L405‑0060

VCA Type Approval Database (VCA/EMS/7891)

ISO 1585: Road vehicles — Engine test code

D-16-A8 Compatible Models

The Range Rover D 16 A8 was used exclusively in Land Rover's L405 platform with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts and bespoke exhaust manifolding—and from 2020 was replaced by the mild-hybrid Ingenium inline‑six diesel, creating hard interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Land Rover
Years:
2016–2019
Models:
Range Rover (L405)
Variants:
TD6
View Source
Land Rover Group PT‑2017
Make:
Land Rover
Years:
2016–2019
Models:
Range Rover Sport (L494)
Variants:
TD6
View Source
Land Rover Group PT‑2017
Identification Guidance

Locate the engine code stamped on the left-hand cam cover near the oil filler cap (Land Rover TIS L405‑0010). The 8th VIN digit indicates engine displacement ('M' for 3.0L V6 diesel). Visual identification: black alloy cam covers with 'TD6' badge on front grille. Critical differentiation from later Ingenium inline‑six: D 16 A8 has a V6 layout with twin turbochargers visible on either bank. Service parts require production date verification—timing kits for engines before 06/2018 use early tensioners incompatible with post‑TSB revisions (Land Rover TSB LTB00375).

Identification Details

Evidence:

Land Rover TIS Doc. L405‑0010

Location:

Stamped on left-hand cam cover near oil filler cap (Land Rover TIS L405‑0010).

Visual Cues:

  • Black cam covers with 'TD6' front badge
  • V6 configuration with twin turbos (one per bank)
Timing Chain Upgrade

Issue:

Early tensioners (pre-06/2018) prone to polymer fatigue, causing chain slap and timing deviation.

Evidence:

Land Rover TSB LTB00375

Recommendation:

Install revised tensioners and guide rails per Land Rover TSB LTB00375 during any timing service.

Common Reliability Issues - RANGE-ROVER D-16-A8

The D 16 A8's primary reliability risk is timing chain tensioner wear on early builds, with elevated incidence in high-idle or towing usage. Land Rover internal quality data from 2018 indicated a notable share of pre-2018 engines requiring tensioner replacement before 100,000 km, while UK DVSA records show DPF-related faults as a common MOT emissions failure. Frequent cold starts and extended idling accelerate component fatigue, making oil quality and interval adherence critical.

Timing chain tensioner wear
Symptoms: Metallic rattle on cold start, cam timing correlation DTCs, oil with fine metallic particles.
Cause: Early polymer tensioner arms degrade under thermal cycling, reducing chain tension and causing slap against guides.
Fix: Replace with updated tensioners and guide rails per Land Rover TSB LTB00375; verify cam timing with OEM diagnostic tool after installation.
DPF clogging
Symptoms: Reduced power, increased fuel consumption, forced regeneration cycles, failed emissions test.
Cause: Short-trip driving prevents passive DPF regeneration, leading to ash and soot accumulation in the filter substrate.
Fix: Perform forced regeneration via OEM diagnostic tool; if clogged beyond threshold, replace DPF assembly per TIS procedure.
High-pressure fuel pump failure
Symptoms: Hard starts, misfires, stored P0087 or P1234 codes, fuel contamination in oil.
Cause: Bosch CP4.2 pump susceptible to wear with low-lubricity or contaminated diesel fuel.
Fix: Replace high-pressure pump with latest OEM-specified unit; inspect fuel lines and filters for contamination.
EGR cooler leakage
Symptoms: White exhaust smoke, coolant loss, engine overheating, stored P242F codes.
Cause: Thermal stress and internal corrosion in the EGR cooler cause coolant to leak into the exhaust stream.
Fix: Replace EGR cooler assembly with updated OEM part; flush cooling system and verify coolant level post-repair.
Research Basis

Analysis derived from Land Rover technical bulletins (2016–2019) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about RANGE-ROVER D-16-A8

Find answers to most commonly asked questions about RANGE-ROVER D-16-A8.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialRANGE-ROVER documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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