1. Important Safety Instructions
Please read these instructions carefully before using the appliance and keep them for future reference. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always ensure the voltage indicated on the rating plate corresponds to your mains voltage.
- Do not leave the iron unattended while it is connected to the mains supply.
- Keep the iron and its cord out of reach of children.
- Never immerse the iron in water or other liquids.
- Do not operate the iron with a damaged cord or plug, or if the iron has been dropped or damaged.
- Always unplug the iron before filling or emptying the water tank, and when not in use.
2. Product Overview
The Bosch TDI903231A is a powerful compact steam iron designed for efficient and effective ironing. It features advanced technologies for optimal steam distribution and fabric care.
Key Components
- CeraniumGlissée Soleplate: For excellent glide and steam distribution.
- Water Tank: Transparent, with a capacity of 400 ml.
- Temperature Dial: For selecting appropriate heat settings.
- Steam Button/Slider: To control steam output.
- Spray Nozzle: For moistening stubborn creases.
- Power Cord: With Flexo hinge for flexibility and cable winding for storage.

Image: The Bosch TDI903231A steam iron, showcasing its ergonomic design and control panel.
3. Setup and First Use
Unpacking
- Remove all packaging materials and labels from the iron.
- Check the appliance for any visible damage. Do not use if damaged.
Filling the Water Tank
- Ensure the iron is unplugged from the mains.
- Open the water inlet cover.
- Fill the water tank with tap water up to the 'MAX' mark (400 ml capacity). Do not overfill.
- Close the water inlet cover securely.

Image: Demonstrates the process of filling the water tank of the Bosch TDI903231A steam iron.
First Use
During the first use, a slight odor or smoke may occur. This is normal and will disappear after a short time. It is recommended to iron an old piece of fabric first to remove any residue from the soleplate.
4. Operating Instructions
Temperature and Steam Settings
The Bosch TDI903231A features i-Temp Advanced, which provides an ideal combination of temperature and steam for all ironable fabrics, eliminating the need for constant temperature adjustments. For specific fabrics, you can still adjust the temperature dial.
- i-Temp Advanced: Select this setting for most fabrics. The iron automatically adjusts.
- AntiShine Program: Use this special program for dark and temperature-sensitive fabrics to prevent shiny spots.
- MotorSteam: The integrated motor ensures permanent, deeper steam penetration into the fabric.
- SensorSteam: This touch-controlled feature automatically activates and deactivates the appliance and the motor-generated steam when you grip or release the handle.
- Continuous Steam: Provides a steady steam output of 65 g/min for effective wrinkle removal.
- Steam Shot: Press the steam shot button for an extra burst of 200 g/min steam to tackle stubborn creases.
- Vertical Steam: Use the steam shot function while holding the iron vertically to refresh hanging garments or curtains.

Image: The Bosch TDI903231A iron being used to generate steam, illustrating its powerful steam output.
Ironing Process
- Plug the iron into a suitable mains socket.
- Set the desired temperature or select i-Temp Advanced. The indicator light will illuminate.
- Wait for the indicator light to turn off, indicating the iron has reached the set temperature.
- Begin ironing. Use the steam functions as needed.
- The Drip Stop feature prevents water from dripping from the soleplate when the temperature is too low for steam.
- The iron features an Automatic Shut-off function for safety, activating when the iron is left stationary for a period.
5. Maintenance and Cleaning
Cleaning the Soleplate
To maintain optimal glide and performance, clean the CeraniumGlissée soleplate regularly.
- Ensure the iron is unplugged and completely cool.
- Wipe the soleplate with a damp cloth and a non-abrasive liquid cleaner, if necessary.
- Do not use abrasive pads, scourers, or harsh chemicals as these can damage the soleplate.

Image: Close-up of the CeraniumGlissée soleplate with steam channels, highlighting its design for optimal steam distribution and glide.
Descaling (Anti-Calc System)
The Bosch TDI903231A features a 4-fold cleaning function and an Anti-calc system to prevent limescale buildup. Regular descaling is crucial for prolonging the life of your iron, especially if using hard water.
- Refer to the specific instructions in the full manual for the detailed self-cleaning procedure.
- Typically, this involves filling the tank, heating the iron, and then activating a self-clean function to flush out mineral deposits.
Storage
- Always empty the water tank after each use.
- Allow the iron to cool down completely before storing.
- Store the iron in an upright position to prevent soleplate damage.
- Wrap the power cord around the designated cable winding area.
6. Troubleshooting
If you encounter issues with your Bosch TDI903231A iron, consult the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Iron not heating up. | Not plugged in; power outlet fault; automatic shut-off activated. | Check power connection; try another outlet; move the iron to reactivate. |
| No steam or insufficient steam. | Water tank empty; temperature too low for steam; steam vents blocked; calcification. | Fill water tank; increase temperature setting; perform self-cleaning/descaling. |
| Water dripping from soleplate. | Temperature too low for steam (Drip Stop not active); overfilled water tank. | Increase temperature; ensure water level is below MAX mark. |
| White flakes coming from soleplate. | Limescale buildup. | Perform the self-cleaning/descaling procedure. |
7. Specifications
Technical details for the Bosch TDI903231A Compact Steam Iron.
- Model: TDI903231A
- Power: 3200 Watts
- Continuous Steam Output: 65 g/min
- Steam Shot: 200 g/min
- Water Tank Capacity: 400 ml
- Soleplate Type: CeraniumGlissée
- Cable Length: 2.5 meters
- Weight: 2.1 Kilograms
- Voltage: 230 VAC
- Special Features: MotorSteam, i-Temp Advanced, AntiShine Program, SensorSteam, Anti-calc, Drip Stop, Vertical Steam, Automatic Shut-off, Self-cleaning, Cable Winding, Flexo Hinge, Transparent Water Reservoir.
8. Warranty and Support
Warranty Information
This Bosch appliance comes with a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms, conditions, and duration. Keep your proof of purchase for any warranty claims.
Customer Support
For further assistance, technical support, or to inquire about spare parts, please contact Bosch customer service in your region. Contact details can typically be found on the official Bosch website or in the documentation provided with your appliance.