Technology, Winter Storage and Lake Constance Approval


We offer the following services:

  • Volvo Penta contractual partner of New and used engines
  • Maintenance and repair of motors and drives
  • Conversion for Lake Constance approval (BSO II)
  • TÜV-approval: Trailer and boats
  • Winterizing / Wintering out
  • Wetting / Watering out incl. Transport
  • Winter storage
  • Under water paintings
  • Special design and maintenance of the cover, Tarpaulins and upholstery
  • Tuning & Performance Improvement
  • Advice and installation accessories
  • Parts and engines
  • Vintage Revision and restoration
  • Classic Boats
  • New Boats: Cobrey YachtsTwiel Boats, Futuro Boats

New: repair of ship propellers for boats and yachts

Lake Constance Approval (BSO)


Our services to the Lake Constance Approval (BSO) for you

MIZU P-Max BSO II conversion kits

For engines with catalytic converterFor engines without catalytic converter
MIZU BSO II kit 4,3 ltr.MIZU P-Max kit kmpl. 4,3 ltr.
MIZU BSO II kit 5,0 ltr.MIZU P-Max kit kmpl. 5,0 ltr.
MIZU BSO II kit 5,7 ltr.MIZU P-Max kit kmpl. 5,7 ltr.
MIZU P-Max kit kmpl. A 7.4 ltr.
MIZU P-Max kit kmpl. 8,2 ltr.

A motor boat on the lake of Constance permit must be complied with the legal requirements is mandatory. The most important part of this legislation, the emission performance of the engine, since the lake is regional of the largest drinking water storage.

Since a few years, most of the manufacturers have done a lot of thinking on the subject of emissions of their boat engines and installing a catalytic Converter in the factory. However, these have only one release for the engine in the boat. You should have a boat with Twin engines or a non-factory-tested engine, you must leave the engine or engines of retooling. The MIZU is the world’s first provider that has examined the pollutant emissions from marine engines either in the fuel or gas, on the lake of Constance standard BSO stage 2. The success of this technology confirms the leading Position in the Marine sector. The MIZU petrol engines-technology reduces the CO2 emissions, and provides for a more economical fuel consumption. The cultivation systems characterized by regulated exhaust emissions, as well as ready-to-Assembly, and TÜV tested components. The System is supplied with an exhaust-type-examination certificate. Currently, the P-Max systems are only for engines with a fuel injection system available.

The cost for upgrading the in your boat is built in to the Motor/s.

Has your boat outlets for the Bilge and/or a sink and a toilet, then these need to be closed and gain the certificate ‘Constance approval’ to. For this to Work, additional costs are incurred.

We are happy to work with you a suitable offer for you to make your boat for the lake Constance fit and to get the popular and necessary certificate. Simply contact us by E-Mail at: info@mizu-marine.ch or via the contact form.

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