When food remains after a completed Bosch wash, separate loading and filtration from drainage or drying complaints. Check whether dishes block the spray path and whether the removable filter needs cleaning. Poor results do not by themselves identify a failed circulation pump.
Brand-level navigation and symptom classification. Exact-model pages own their documented controls and access procedures.
Stop and isolate power before permitted user maintenance, and let water cool. Watch for sharp debris. Do not reach blindly into a sump, open electrical panels or use drain-opening chemicals. Stay clear of water near electrical equipment.
Choose the observed outcome
The residue pattern is evidence: food left on one rack can suggest a loading or distribution check, while a broadly poor result needs a wider assessment. Cloudy film is a separate observation and should not automatically be treated as trapped food. Change one reasonable variable at a time after safe maintenance so the next result tells you something useful rather than obscuring the original symptom.
Start with the relevant branch
Review loading
Keep large items from obstructing the spray arms and detergent dispenser. With the appliance stopped, check the clearances described by the manual.
Clean user-maintenance parts
Follow the E-Nr manual for the removable filter and permitted spray-arm cleaning. Do not use a sharp tool to enlarge spray holes or disassemble hidden plumbing.
Go to the exact problem
When to stop and get help
Only carry out maintenance permitted in your model’s manual. For service, note the full model number and suffix, displayed code, selected cycle and what happened during the checks. Leave internal wiring, gas components, pumps and safety devices to a qualified professional. A symptom alone does not identify a failed part.
Sources & references
Based on publicly available manuals, manufacturer support and the references listed here. We have not inspected or tested your appliance. Follow the instructions for your exact model; a guide cannot replace an in-person diagnosis.