Question 1

How do I know which wiper blade size fits my car?

Accepted Answer

Check your vehicle handbook — it lists the correct blade length for both driver and passenger sides. Alternatively, most online retailers and parts sites have a vehicle registration lookup tool that returns the exact sizes for your make, model, and year. Don't guess: driver and passenger blades are almost always different lengths, and even a 1-inch mismatch can leave a significant unwiped strip on your windscreen.

Question 2

Are Bosch Aerotwin blades worth the extra cost over standard framed blades?

Accepted Answer

For most drivers, yes — particularly if you do regular motorway driving. The flat-blade design eliminates the metal frame that can ice up in winter and cause chatter at speed. Bosch Aerotwin blades apply pressure more evenly across the full blade length, which means fewer streaks and less noise. The price difference between a basic framed blade and an Aerotwin is modest at this end of the market, making the upgrade straightforward to justify.

Question 3

How often should wiper blades be replaced?

Accepted Answer

Every 12 to 18 months is the standard recommendation, though UK conditions — frequent rain, UV exposure in summer, frost in winter — can accelerate wear. A reliable indicator is performance: if your blades are streaking, squeaking, or skipping across the screen, replace them immediately rather than waiting for a scheduled service. Don't wait until your MOT tester flags them.

Question 4

Can I fit a flat wiper blade to any car?

Accepted Answer

Not always. Flat blades require a compatible wiper arm connector — most modern European cars use the U-hook (bayonet) fitting that the Bosch AR U series is designed for, but older vehicles and some Asian models use different connectors. Some flat blades come with a multi-adaptor kit; others don't. Check the connector type on your existing blade before buying, or use a fitment guide. Forcing an incompatible connector is a common and avoidable mistake.

Question 5

Is it worth buying cheap wiper blades from an unknown brand?

Accepted Answer

Generally, no — and this is one category where we'd actively steer you away from the very cheapest options. A wiper blade that streaks or skips in heavy rain is a genuine safety issue, not just an inconvenience. The difference in price between a no-name blade and a Bosch or Valeo equivalent is often just a few pounds, but the performance gap is significant. Hella and Champion at the budget end are at least established automotive suppliers with quality standards; truly unknown brands are a gamble we wouldn't take on something this safety-critical.

Question 6

What's the difference between Bosch and Valeo wiper blades in 2026?

Accepted Answer

Both are OEM-grade suppliers — Bosch and Valeo manufacture wiper systems for major car manufacturers, so both brands are genuinely high quality. The practical difference comes down to fitment: some vehicles are factory-fitted with Valeo systems, and replacing like-for-like can sometimes give marginally better results. For most drivers, the choice comes down to price and availability. Our data shows Bosch has broader range coverage and more merchant competition, which tends to mean better prices. Valeo's higher-spec blades sit slightly above Bosch equivalents in price but are worth considering for vehicles where Valeo is the OEM supplier.

Question 7

Do wiper blades affect my MOT?

Accepted Answer

Yes — a wiper blade that fails to clear the windscreen adequately is an MOT failure point. Specifically, testers check that wipers clear the windscreen effectively across the driver's required field of vision. Worn, streaking, or split blades can fail this check. Given that replacement blades cost from 8 £, it makes no sense to risk a retest fee. Replace them before your MOT if there's any doubt.

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