The Renault G8T 716 is a 2,188 cc, inline‑four turbo‑diesel engine produced between 1998 and 2001. It features a cast iron block, aluminium cylinder head, indirect injection via pre — chambers, and a fixed — geometry turbocharger. In standard European specification, it produced 85 kW (115 PS) and 250 Nm of torque, designed for robust, low — revving performance in larger Renault vehicles.
Fitted primarily to the Renault Laguna I Phase 2 and Espace III, the G8T 716 was enginee…
Production years 1998–2001 meet Euro 2 standards .
The Renault G8T 716 is a 2,188 cc inline‑four turbo‑diesel engineered for mid-size sedans and MPVs (1998-2001). It combines indirect injection with a single fixed‑geometry turbocharger to deliver strong low-end pulling power and durable highway performance. Designed to meet Euro 2 standards, it prioritizes mechanical simplicity and torque over peak efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,188 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 86.0 mm × 94.0 mm | |
Power output | 85 kW (115 PS) | |
Torque | 250 Nm @ 2,000 rpm | |
Fuel system | Indirect injection (Bosch VE rotary pump) | |
Emissions standard | Euro 2 | |
Compression ratio | 21.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed‑geometry turbo (Garrett) | |
Timing system | Belt (front‑mounted) | |
Oil type | Renault RN0700 (SAE 10W‑40) | |
Dry weight | 165 kg |
The Renault G8T 716 was used across Renault's Laguna I and Espace III platforms with transverse mounting. This engine received no major platform-specific adaptations or facelift revisions affecting core compatibility during its short production run. All specifications are documented in OEM technical bulletins.
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The G8T 716's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in high-mileage vehicles. Renault service data indicates a notable number of actuator replacements under warranty, while owner reports frequently cite sudden power loss or overboost as precursors. Adherence to boost pressure checks and using quality replacement parts is critical.
Analysis derived from Renault technical bulletins (1998-2002) and owner-reported failure data (2000-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The G8T 716 is a mechanically simple and robust engine known for its strong low-end torque. Its main weaknesses are the timing belt (which must be changed religiously) and the turbo actuator. With strict adherence to the 80,000 km timing belt interval and prompt attention to boost system issues, it can be a very dependable engine for high mileage.
The most frequent issues are failure of the turbocharger wastegate actuator leading to boost problems, and catastrophic engine damage from neglected timing belt changes. EGR valve clogging and glow plug failures are also common as the engine ages. These are well-documented in Renault service information.
The G8T 716 2.2 dT engine was used in the Renault Laguna I (Phase 2, 1998-2001) and the Renault Espace III (1998-2000). It was the turbocharged diesel option for these models during that specific production period.
Yes, the G8T 716 can be tuned, primarily by adjusting the Bosch VE injection pump's maximum fuel screw and installing a manual boost controller to increase turbo pressure. Gains of 20-30 PS are possible. However, this puts additional stress on the engine and turbo, so supporting modifications and vigilant monitoring are essential.
Official combined figures for the Laguna I 2.2 dT are around 7.5 L/100km (38 mpg UK). Real-world consumption typically ranges from 8.0-9.5 L/100km (30-35 mpg UK) in mixed driving, heavily influenced by the vehicle's weight and driving style.
Yes. The G8T 716 is an interference engine. If the timing belt fails or jumps, the pistons will collide with the open valves, causing severe internal engine damage. This makes the 80,000 km/5-year timing belt replacement interval absolutely critical.
Renault recommends using RN0700 specification oil, typically a 10W-40 mineral or semi-synthetic grade meeting ACEA B3/B4 standards. This oil is suitable for the engine's design and helps protect the hydraulic lifters and timing belt tensioner.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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