Description
Heat shield for Citroën Peugeot vehicles with 1.4 VTi and 1.6 VTi engines
Designed for professional garages and DIY mechanics, this exhaust heat shield is a direct-fit replacement for models equipped with the 1.4 VTi and 1.6 VTi engines. The shield reduces radiant heat from the exhaust and catalytic converter to adjacent bodywork, wiring and fluid lines, helping to prevent heat-related damage and unpleasant cabin warming. With OEM-compatible mounting points and robust material construction, it is a practical part to install during exhaust or catalyst maintenance to restore factory-level thermal protection.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: 1.4 VTi, 1.6 VTi (Common fitment on selected Citroën and Peugeot models)
- Product Codes: 758430780, 758430780-03, 1723GT
- Other Numbers: No additional reference numbers provided
Compatible Vehicles
Typical applications include, but may not be strictly limited to: Citroën C3 Picasso, Citroën C4 II, Peugeot 308 and Peugeot 308 T9 with the 1.4 VTi or 1.6 VTi engine families. The part is commonly identified and ordered by its product codes for faster lookup.
Function
The heat shield protects vehicle components and body panels from excessive heat produced by the exhaust manifold, catalytic converter and nearby exhaust piping. It prevents heat soak into the floorpan, fuel and brake lines, wiring looms and plastic underbody panels. Proper thermal shielding reduces the risk of premature aging of rubber and plastic parts and lowers the chance of heat-related faults.
Signs Of Wear And Most Common Failure Reasons
- Corrosion from road salt and moisture leading to perforation or loss of stiffness.
- Broken or missing mounting bolts, clips or insulating spacers causing rattles and movement.
- Mechanical damage from road debris or impact deforming the shield and reducing clearance.
- Heat cycling and metal fatigue near fixings, especially where insulation layers delaminate.
Replacement Procedure
- Allow the vehicle to cool completely before starting work; exhaust components retain heat for a long time.
- Safely raise and support the vehicle using jack stands or a lift; never rely on a jack only.
- Remove any underbody covers or trim that obstruct access to the heat shield.
- Unscrew or unclip the mounting fasteners and retainers. Note the orientation and position of any insulation pads or spacers for correct reassembly.
- Inspect surrounding components (wiring, hoses, brackets) and replace any damaged fasteners or spacers.
- Fit the new heat shield in the correct position, reinstall fasteners and secure clips. Tighten to manufacturer’s torque settings where available.
- Lower the vehicle and perform a short road test to ensure there are no rattles and that clearance to the exhaust is correct.
Installation Recommendations
- Use new OEM-quality bolts, nuts and spring clips where possible to ensure secure mounting and correct spacing.
- Apply anti-seize sparingly to mounting threads to ease future removal; avoid contaminating insulation surfaces.
- Replace any degraded insulation pads or spacers to maintain thermal performance and prevent metal-on-metal contact.
- Wear heat-resistant gloves and eye protection. Work on a cool engine and secure the car safely on stands or a lift.
- Inspect the catalytic converter and exhaust hangers while replacing the shield; failing hangers increase stress and accelerate shield wear.
Ordering by the product codes listed above will speed identification during purchase and ensure you receive the correct direct-fit replacement for vehicles with 1.4 VTi and 1.6 VTi engines.
