Description
Vacuum Reservoir 1.6 HDi for Citroën, Peugeot, Ford, Volvo
The vacuum reservoir (vacuum tank) for the 1.6 HDi engine stores negative pressure produced by the engine vacuum pump to ensure immediate and steady vacuum supply to the brake booster and various vacuum-operated actuators. This component helps maintain consistent brake assistance during transient engine conditions and prevents delayed pedal response when engine vacuum is low.
Designed as a direct-fit replacement for vehicles using the 1.6 HDi powerplant, this reservoir matches common OEM part numbers and mounting points, making it suitable for professional workshops and competent DIY mechanics. Replacing a worn or leaking reservoir restores reliable brake-servo performance, reduces vacuum-related faults and can extend the service life of associated vacuum hoses and check valves.
Typical fitment includes a wide range of Citroën and Peugeot models equipped with the 1.6 HDi engine, including but not limited to:
- Citroën Berlingo
- Citroën C3
- Citroën C3 Picasso
- Citroën C4
- Citroën C4 Picasso
- Citroën C5
- Citroën C5 X7
- Peugeot 206
- Peugeot 207
- Peugeot 307
- Peugeot 308
- Peugeot 407
- Peugeot Partner
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.6 HDi
- Product Codes: 9649508680, 037007
- Additional Numbers: 37007
Installation Recommendations
- Park the vehicle on a level surface and allow the engine to cool. For safety, follow standard workshop procedures.
- Locate the vacuum reservoir (typically near the intake manifold or firewall area on 1.6 HDi installations) and document the routing of all vacuum hoses and connectors before removal.
- Carefully disconnect vacuum hoses and electrical connectors if present. Replace any brittle or cracked hoses and seal rings while replacing the reservoir.
- Remove mounting clips or bolts, fit the new reservoir in the correct orientation and secure fasteners to the original torque where applicable.
- Reconnect hoses using tight, corrosion-free clamps or original-style quick connectors. After installation, start the engine and check for vacuum leaks and correct brake pedal response.
- When replacing the reservoir, inspect the vacuum pump and check valve function as recurring reservoir issues can indicate upstream problems.
Common Failure Causes
- Plastic fatigue and hairline cracks from long-term exposure to heat and vibration, leading to slow leaks.
- Degraded or cracked vacuum hoses and brittle connectors that allow air ingress or loss of vacuum.
- Contamination from oil vapors, soot or sludge that can clog ports or damage internal check valves.
- Failure of associated vacuum pump or non-return valve, which increases stress on the reservoir and hoses.
- Symptoms of failure include a hard or inconsistent brake pedal, longer pedal travel, or vacuum-related warning lights.
This vacuum reservoir is aimed at professional mechanics and experienced DIYers who require a reliable, direct-fit replacement for 1.6 HDi applications. When replacing the part, always check surrounding components (hoses, clamps, check valves) to ensure a complete and durable repair.
