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Bosch e-bike repair & service in Sheffield

Expert repair and servicing for Bosch e-bikes: Active Line, Performance Line, Performance Line CX, Cargo Line and the Bosch Smart System. We diagnose motor, battery, display and sensor faults and stock genuine Bosch drive units and parts.

Book an E-bike Diagnostic (£40) · Free look-over · Call 0114 288 8514

Bosch is the most common e-bike system on UK roads and trails, fitted to e-bikes from Cube, Haibike, Trek, Scott, Raleigh, Whyte, Riese & Müller and many more. When a Bosch e-bike throws an error or loses assistance you need a workshop that knows the system, not guesswork.

At Fox Valley Bikes we diagnose Bosch faults properly, from the speed sensor to the drive unit, and only replace what has actually failed. We also stock Bosch drive units and spares, so many Bosch motor and battery repairs are completed without the usual long wait.

Common Bosch e-bike faults we fix

Bosch motor faults

Loss of assistance, cutting out, knocking, grinding or crank play on Active, Performance and CX drive units. Diagnosed, and replaced with genuine Bosch drive units where needed.

Bosch error codes

Error 503 and 504 speed sensor faults, 500 drive unit errors, 410 and 414 control unit errors and other drive unit and battery codes diagnosed and fixed.

PowerPack & PowerTube batteries

Batteries not charging, not recognised or losing range: PowerPack 300, 400, 500 and PowerTube 400, 500, 625, 750 and 800 tested and replaced.

Displays & remotes

Purion, Intuvia, Nyon, Kiox, Kiox 300, Purion 200 and LED Remote: dead screens, buttons and connection faults.

Speed sensors & magnets

Misaligned or damaged speed sensors and wheel magnets, the most common cause of Bosch error 503.

Bosch e-bike service

Full e-bike service with brakes, drivetrain and wheels set up for Bosch torque, plus a system health check.

Bosch systems we repair

  • Active Line
  • Active Line Plus
  • Performance Line
  • Performance Line Speed
  • Performance Line CX
  • Performance Line SX
  • Cargo Line
  • Bosch Smart System
  • PowerPack 300/400/500
  • PowerTube 400/500/625/750/800
  • Purion
  • Intuvia
  • Nyon
  • Kiox
  • Kiox 300
  • LED Remote

Why Sheffield riders choose Fox Valley Bikes for e-bike repair

Engineers, not just mechanics

Our founder is a qualified electrical and electronic engineer who has run an e-bike and e-scooter repair workshop for over five years. We understand the electronics, not just the bolts.

Every brand, every system

Bosch, Shimano STEPS, Bafang, Brose, Yamaha, Panasonic, Mahle, hub motors and conversion kits, wherever you bought the bike.

Rated 4.9★ on Google

Over 135 Google reviews from Sheffield riders. Honest advice, fair prices and repairs done properly.

Two shops and mobile repair

Moor Market in Sheffield city centre, Stocksbridge, and mobile e-bike repair across Sheffield and up to 10 miles around.

How our e-bike repair works

  1. Book or drop in Book an E-bike Diagnostic online, call 0114 288 8514, or bring your e-bike to our Moor Market or Stocksbridge shop.
  2. We diagnose it properly We read the error codes and test the motor, battery, charger, display, sensors and wiring, so we fix the cause, not the symptom.
  3. Clear quote, no surprises You get a written quote before any parts are fitted. If it is not worth fixing, we tell you honestly.
  4. Fixed, tested, ridden We repair it, update and set it up, then test-ride it before you collect.

E-bike repair prices

Choose your e-bike system

Frequently asked questions

Can you repair a Bosch e-bike motor?

Yes. We diagnose Bosch drive unit faults and replace failed drive units with genuine Bosch units. Bosch motors are sealed by design, so we tell you honestly whether a repair or replacement is the right option.

What does Bosch error 503 mean?

Error 503 usually points to the speed sensor: a misaligned or missing wheel magnet, a damaged sensor or its cable. It is one of the most common Bosch faults and is often a quick fix.

Why is my Bosch battery not charging?

It can be the charger, the charging port, the battery contacts or the battery itself. We test each part so you only pay for what is actually faulty.

Do you service Bosch e-bikes bought elsewhere?

Yes. We work on all Bosch-powered e-bikes, wherever you bought them.

Do you sell Bosch parts?

Yes. We stock Bosch drive units, batteries and spares and can fit them for you in our Sheffield workshop.

Areas we cover

E-bike repair for riders in Sheffield city centre, Stocksbridge, Hillsborough, Crookes, Walkley, Ecclesall, Nether Edge, Dore, Totley, Hathersage, Penistone, Deepcar, Oughtibridge, Chapeltown, Rotherham, Barnsley, Chesterfield and the Peak District. Visit us at Unit MS83, Moor Market, 77 The Moor, Sheffield S1 4PF or 500-502 Manchester Road, Stocksbridge, Sheffield S36 2DU, or book mobile e-bike repair.

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