1. Introduction
This manual provides instructions for the installation and maintenance of the ESC EWR1002 Window Regulator Repair Kit, designed for the rear left door of Opel Astra H models manufactured between 2004 and 2010. This kit is intended to replace worn or damaged components of the existing window regulator mechanism, restoring proper window function.
It is highly recommended that installation be performed by a qualified automotive technician due to the complexity and safety considerations involved with vehicle electrical and mechanical systems.
2. Product Overview and Components
The ESC EWR1002 kit includes essential components required to repair the window regulator mechanism. Please verify all parts are present and undamaged before beginning installation.

Figure 2.1: Overview of the ESC EWR1002 Window Regulator Repair Kit components. This image displays the two main cables with springs, a plastic pulley, a plastic window carrier, and small metal fasteners.

Figure 2.2: A closer look at the individual parts of the repair kit, showing the two steel cables with attached springs, the main plastic pulley wheel, the plastic window carrier, and a small metal pin and clip.
- Steel Cables: Two pre-cut steel cables with end fittings and tension springs.
- Plastic Pulley: The central plastic gear/pulley mechanism.
- Window Carrier: A plastic component that attaches to the window glass.
- Fasteners: Various small clips and pins for assembly.
3. Setup and Installation
This section provides a general outline for the installation process. Specific steps may vary depending on the vehicle's exact configuration. Refer to a vehicle-specific service manual for detailed instructions.
3.1. Safety Precautions
- Disconnect the vehicle's battery before starting any electrical work.
- Wear appropriate personal protective equipment (PPE), including gloves and eye protection.
- Ensure the window glass is securely supported during removal and installation to prevent breakage or injury.
- Work in a well-lit and stable environment.
3.2. Required Tools (Typical)
- Screwdrivers (Phillips, Flathead, Torx)
- Socket Wrench Set
- Trim Removal Tools
- Pliers
- Wire Cutters (if old cables need to be cut)
- Grease (for moving parts)
3.3. General Installation Steps
- Door Panel Removal: Carefully remove the interior door panel, disconnecting any electrical connectors (e.g., window switch, door lock).
- Water Shield Removal: Peel back the plastic water shield to access the inner door components.
- Window Glass Support: Secure the window glass in the up position using tape or a clamp.
- Old Regulator Removal: Disconnect the window glass from the old regulator carrier. Unbolt and remove the entire old window regulator assembly.
- Disassembly of Old Regulator: If only specific parts are being replaced (e.g., cables, pulley, carrier), carefully disassemble the old regulator, noting the routing of the cables.
- New Kit Assembly: Assemble the new ESC EWR1002 components according to the original regulator's configuration. Ensure cables are correctly routed and tensioned around the pulley.
- New Regulator Installation: Install the repaired or new regulator assembly into the door, bolting it securely.
- Window Glass Attachment: Reattach the window glass to the new carrier.
- Testing: Reconnect the window switch (temporarily) and the battery. Test the window's up and down movement, ensuring smooth operation and full travel.
- Reassembly: Reinstall the water shield and interior door panel, reconnecting all electrical connectors.

Figure 3.1: Detailed view of the plastic window carrier and a metal clip, crucial components for attaching the window glass to the regulator mechanism.
4. Operating the Window
After successful installation of the ESC EWR1002 Window Regulator Repair Kit, the window should operate normally via the vehicle's power window switch. Ensure the window moves smoothly without binding or excessive noise. If the window has an auto-up/down feature, it may require recalibration after battery disconnection or regulator replacement. Consult your vehicle's owner's manual for recalibration procedures.
5. Maintenance
The ESC EWR1002 Window Regulator Repair Kit is designed for durability and typically requires minimal maintenance after proper installation. However, periodic checks can help ensure longevity:
- Lubrication: If accessible, apply a small amount of silicone-based lubricant to the window tracks and any visible moving parts of the regulator mechanism every few years to ensure smooth operation. Avoid petroleum-based lubricants as they can damage plastic and rubber components.
- Cleanliness: Keep window tracks free of dirt and debris, which can impede window movement and put strain on the regulator.
- Inspection: If you notice any unusual noises, slow operation, or binding, have the window mechanism inspected by a qualified technician.
6. Troubleshooting
This section addresses common issues that may arise after installing a window regulator repair kit.
| Problem | Possible Cause | Solution |
|---|---|---|
| Window does not move. |
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| Window moves slowly or binds. |
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| Unusual noises (grinding, clicking). |
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7. Specifications
| Feature | Detail |
|---|---|
| Model Number | EWR1002 |
| Brand | ESC |
| Compatibility | Opel Astra H (2004-2010), Rear Left Door |
| Part Type | Window Regulator Repair Kit |
| UPC | 700890881672 |
| Manufacturer | ESC |
8. Warranty and Support
For information regarding product warranty, returns, or technical support, please contact the seller or manufacturer directly. This information is not provided within this manual.
Manufacturer: ESC





