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Bosch Series 4 or Siemens iQ300: which lasts longer?

Score, spare parts and the five criteria of the French repairability index for both dishwashers side by side (as of 2 November 2026).

Bosch Series 4
9.4/10
Siemens iQ300
9.4/10
9.4/10
Score (France)Excellent · Rank 28 of 580
Spare partsover 14 years
9.4/10
Score (France)Excellent · Rank 77 of 580
Spare partsover 14 years

Result

Both score 9.4 out of 10 in the French repairability index.

Spare parts are available over 14 years for both, according to the suppliers.

Both are equal on all five criteria.

Both are equal on every value compared.

All values compared

Bold is the better value where the devices differ. Grey below: the typical value across all dishwashers (median, our own calculation). For ranges with several models, the best model counts; the range is on the device page.

ValueBosch Series 4Siemens iQ300
Repairability scoretypical 9.29.4 out of 109.4 out of 10
Spare partstypical 14 yearsover 14 yearsover 14 years
Manualstypical 15.414.6 out of 2014.6 out of 20
Disassemblytypical 19.719.7 out of 2019.7 out of 20
Spare parts availabletypical 20.020.0 out of 2020.0 out of 20
Spare parts pricestypical 20.020.0 out of 2020.0 out of 20
Product criteriontypical 18.020.0 out of 2020.0 out of 20

More comparisons

Frequently asked questions

Which has the better repairability score, the Bosch Series 4 or the Siemens iQ300?

Both score 9.4 out of 10 in the French repairability index, as published by the suppliers.

For which are spare parts available for longer?

According to the suppliers, spare parts are available over 14 years for both.

Which is easier to take apart?

On the disassembly criterion both reach 19.7 out of 20 points; typical in the category is 19.7.

Sources

Laws and regulations in their current version, linked to the source.

  1. Consolidated French repairability index data (data.gouv.fr)data.gouv.fr · Open data · 13 Oct 2026
  2. Article L. 541-9-2 French Environmental Code (repairability and durability index)Légifrance · French law · 1 Jan 2021
  3. Licence Ouverte / Open Licence 2.0 (Etalab)Etalab (DINUM) · Licence · 13 Oct 2026
  4. Indice de réparabilité (French Ministry of Ecological Transition)Ministère de la Transition écologique · Authority · 8 Jul 2025
  5. German Act against Unfair Competition (UWG)Bundesministerium der Justiz · Law · 27 Sept 2026