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Bosch Car Service - Light and Sight Guide

How important is correct headlight adjustment?

Incorrectly set headlights are not only a danger to the driver, but for all other road users as well. Not only do they fail to provide sufficient illumination, they can also dazzle the drivers of oncoming vehicles. So it is important to have your lights checked at regular intervals to ensure safe driving at all times. Bosch Car Service workshops can also perform halogen headlamp adjustment for you. Remember: With halogen headlamp systems the range should always be adjusted if the luggage compartment is heavily laden. Litronic/xenon headlamp systems do this for you automatically.

Incorrectly set lightsSafety - the correct setting is what counts

The "Light weeks", initiated by the German central motor vehicle association, take place every year in October. During this period you can have your vehicle lights checked free of charge at all Bosch Service workshops in Germany and Austria. And if we find any faults we will gladly put these right for you. If everything is OK this will be confirmed by a test sticker on your windshield.

Why it is advisable to drive with the lights on even during the day.

Did you know that daytime driving lights are obligatory in 20 EU countries? The positive accident statistics for these countries speak for themselves. Cars traveling with dipped headlights are always easier to see – in fog, snow or rain. Driving with "normal" dipped beam does however also result in greater wear and tear on the bulbs. This is the reason why Bosch developed powerful bulbs like the Plus 90 with its outstanding light efficiency or the particularly durable Longlife Daytime. It is not without good reason that car drivers regularly give Bosch automotive bulbs top marks, as they let you drive with the lights constantly switched on – at any time of day or night.

What is to be heeded when using fog lamps?

Fog lamps and rear fog lights increase road traffic safety but there are certain conditions governing their use.

Fog lampsPoints to note:

Fog lamps should only be switched on if visibility is severely impaired by rain, fog or snow. Rear fog lights must only be used if visibility drops below 50 m.

Why is wiper quality so important?

Good visibility largely depends on the quality of the wipers. After all, wipers have to complete more than 750,000 wipe cycles, corresponding to an area equivalent to about 80 football pitches. And as if that were not enough, they also have to withstand the toughest conditions:


  • Temperature fluctuations between -30°C and 80°C with exposure to direct sunlight
  • Dirt, insects, ice, etc. on the windshield
  • Chemical influences

When should wipers be changed?

Even the best eyes have trouble seeing when wiper blades become worn. Even so, most drivers do not change their wipers until the chatter accompanying every change of direction becomes a nuisance. By which time it is really already too late. The infographic shows when and whether it is best to change wipers.

But incorrect fitting of wiper arms can also cause severe streaking and smearing, so it is best to let us do it. We will set the wipers properly or, if necessary, fit your vehicle with new quality products from Bosch – to ensure optimum wiping action even in the most adverse weather conditions.

Wiper infographic

What are the advantages of using a glass cleaner?

Dirt, dust and insects all produce a film on the windshield which can rarely be removed just with water and thus represents a potential hazard. The answer is a special glass cleaner which also stops ice forming on the windshield in winter. This is available ready-mixed or in concentrated form from retailers. Important: The correct mixing ratio is essential to achieve the desired effect.

For optimum visibility – Aerotwin Maximum Performance flat wiper blades from Bosch

The aerodynamic design of Aerotwin Maximum Performance flat wiper blades from Bosch guarantees perfect visibility at all times. The integrated, tailor-made high-tech spring strip distributes the contact pressure evenly over the entire length of the wiper and thus adapts perfectly to the curvature of the car windshield. And thanks to the innovative adapter, Bosch Aerotwin wiper blades are suitable for all standard vehicle models on the market.

The advantages at a glance:

  • Excellent wiping performance thanks to high-tech spring strip and aerodynamically optimized profile
  • Even contact pressure and thus a longer service life
  • Reduced surface area minimizes wind noise
  • Top quality wiping even at high speeds
  • Better equipped for winter conditions, as ice cannot form on the metal frame and joints

High quality service for your car

Bosch Car Service - the car experts. This is the right address for outstanding service quality for your car. Whether you are looking for advice, repair or service work we can offer the full package - coupled with the unique expertise of Bosch, the world's leading original equipment supplier for virtually all makes.

The experts from Bosch Car Service are fully equipped to deal with the latest automotive technology in vehicles of all makes and keep them in perfect working order. And so your car is always in the best possible hands when you take it to Bosch Car Service for maintenance and repair.

For everything your car needs!

Is there anything else you would like to know?

We would be delighted to answer any questions you may have. Please contact us at: We look forward to hearing from you.