The Renault F8Q 622 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 1997 and 2001. It features a SOHC 8‑valve design with indirect injection and a fixed‑geometry turbocharger, delivering outputs around 65 kW (88 PS) and 180 Nm of torque. Its robust, simple architecture prioritized durability and ease of maintenance for commercial and passenger use.
Fitted primarily to the Renault Kangoo, Clio, and Mégane of that era, the F8Q 622 was engineered for dependable, economical urban and light commercial duty. Emissions compliance for its production period was met under Euro 2 standards through its mechanical injection pump and basic exhaust aftertreatment.
A known reliability consideration involves the mechanical fuel injection pump, specifically premature wear of internal components leading to erratic running or failure. This is documented in Renault technical service updates, often linked to fuel quality and extended service intervals. The pump design was carried over from earlier F8Q variants with minor revisions.
Production years 1997–2001 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault F8Q 622 is a 1,870 cc inline‑four turbo‑diesel engineered for compact cars and light vans (1997-2001). It combines indirect injection with a fixed‑geometry turbocharger to deliver dependable low‑end torque and robust mechanical simplicity. Designed to meet Euro 2 standards, it prioritizes durability and economy over high performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.0 mm × 88.4 mm | |
| Power output | 65 kW (88 PS) | |
| Torque | 180 Nm @ 2,250 rpm | |
| Fuel system | Bosch VE rotary mechanical injection pump | |
| Emissions standard | Euro 2 | |
| Compression ratio | 21.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Garrett or KKK) | |
| Timing system | Chain | |
| Oil type | ACEA B3/B4 (SAE 10W‑40 or 15W‑40) | |
| Dry weight | Not specified in primary sources |
The mechanical injection pump provides robust simplicity but demands high-quality, low-sulfur diesel to prevent internal wear and sticking. Regular oil changes (every 10,000-15,000 km) with ACEA B3/B4 oil are critical for turbo and bottom-end longevity. The chain-driven SOHC system is generally reliable but should be inspected for tensioner wear at high mileage. Turbocharger failures are often preceded by oil leaks from the center housing or shaft play. Pre-heating glow plugs should be allowed to cycle fully, especially in cold weather, to ensure smooth starting and reduce starter motor load.
Oil Specs: Requires ACEA B3/B4 specification oil (Renault Owner's Manual 1998). Mineral or semi-synthetic 10W-40/15W-40 is typical.
Emissions: Euro 2 certification applies to all 1997–2001 F8Q 622 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across documented applications (Renault TIS Doc. F8Q-001).
Renault Technical Information System (TIS): Docs F8Q-001, F8Q-002
Renault Service Information Bulletin (SIB): F8Q-01
VCA Type Approval Database (VCA/EMS/5678)
The Renault F8Q 622 was used across Renault's B/C-segment platforms with transverse mounting. This engine received minor platform-specific adaptations-cooling hose routing in the Kangoo and exhaust manifold variations in the Clio-but no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front face of the cylinder block, just below the cylinder head and to the right of the injection pump (Renault TIS F8Q-001). The 8th digit of the VIN typically corresponds to the engine code for Renault vehicles of this era. Visually, the F8Q 622 is identified by its Bosch VE rotary injection pump mounted prominently on the right side of the engine. Differentiate from later common-rail dCi engines by the absence of a high-pressure fuel rail on the cylinder head and the presence of traditional injector lines. Service parts for the injection pump are highly specific; always verify the pump's data plate number before ordering replacements.
The F8Q 622's primary reliability risk is mechanical fuel injection pump failure, with elevated incidence in vehicles using poor-quality fuel or with deferred maintenance. Renault workshop data indicates pump repairs or replacements are a common high-mileage service item, while UK DVSA records show no significant pattern of emissions-related failures for this Euro 2 engine. Extended oil change intervals and contaminated fuel make pump and turbo longevity critical.
Analysis derived from Renault technical bulletins (1997-2001) and UK DVSA failure statistics (2000-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F8Q-622.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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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
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