Toyota RAV 4 Poor starting behaviour after prolonged vehicle standstill

Toyota RAV 4

Poor starting behaviour after prolonged vehicle standstill

Faulty injection valves could be a possible cause. After visually inspecting the wiring harness and plug connections, the fault memory of the engine control unit should be read out and deleted if necessary.

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Mazda CX5 Activate and deactivate maintenance mode

Mazda CX5

Activate and deactivate maintenance mode

Vehicles equipped with an electromechanical parking brake can be set to maintenance mode as follows.
Before the brake pads on the rear axle brake callipers can be replaced, the electric actuator motors must be retracted.

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Injection nozzle Technical product information

Injection nozzle

Technical product information

Injection valves provide each cylinder with the required fuel and simultaneously atomise the fuel so that it can burn most effectively in the combustion chamber. Scroll through this page and find out how injection valves work and potential fault symptoms.

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Kia Sportage Poor air-conditioning performance

Kia Sportage

Poor air-conditioning performance

If the performance of the air-conditioning system is inadequate when outside temperatures are high, a faulty evaporator temperature sensor (see illustration example) may be the cause. Incorrectly measured values can cause the evaporator to freeze and block the air flow.

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Volkswagen T6 Noise when outside temperatures low

Volkswagen T6

Noise when outside temperatures low

With the above-mentioned vehicles, rattling, rather non-specific noises may occur when the engine is cold and the outside temperature is low. The noise disappears when operating temperature returns to normal. The dual-mass flywheel could be a possible cause of the problem.

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MAZDA CX5 (KE) Fault code  P0299 - Boost pressure too low

MAZDA CX5 (KE)

Fault code P0299 - Boost pressure too low

A BI-turbo unit is installed in this vehicle model. This two-stage turbocharging with a small turbocharger that responds early and a large turbocharger for high speeds ensures an optimum engine response in all speed ranges.

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HYUNDAI I 20

Fault code C1603 - Insufficient steering assistance

If the electric power steering on the vehicles mentioned above is sluggish or the steering assistance is insufficient, the fault memory of the steering control unit can be read out first.

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TIRE PRESSURE MONITORING SYSTEM (TPMS)

TIRE PRESSURE MONITORING SYSTEM (TPMS)

Technical product information

From the end of 2014, all new vehicles have a tire pressure monitoring system on board as standard. It provides a warning about insufficient tire pressure and protects the driver against increased fuel consumption and tire damage. On this page, those interested in technology will find a whole host of details relating to the respective system variants, practical tips for changing tires, and important information to be taken into account during tire fitting.

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FORD FOCUS Instrument cluster failure

FORD FOCUS

Instrument cluster failure

If the displays on the instrument cluster fail at the same time as poor acceleration behaviour is detected in the vehicle models mentioned above, one cause may be a defective wiring harness in the area of the right-hand A-pillar.

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TOYOTA AYGO Fault code P0420, P0300 misfires or engine starts poorly

TOYOTA AYGO

Fault code P0420, P0300 misfires or engine starts poorly

Oil carbon deposits on the spark plugs can lead to the following problems in the vehicles mentioned above:

  • Misfires
  • Poor starting behaviour
  • The engine control lamp is lit up
  • Fault codes stored in the control unit
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Alfa Romeo Condensation forming on the front fog lamp

Alfa Romeo

Condensation forming on the front fog lamp

If complaints are made about the above issue, this does not necessarily point to any error. If the covering pane is covered by condensation, the area where light is emitted should dry within 20 minutes of driving with the low beams turned on.

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Toyota Prius  Overload in the hybrid control electronics

Toyota Prius

Overload in the hybrid control electronics

On the above vehicles, the emergency program may be activated following heavy acceleration. Due to excessive acceleration, the hybrid control electronics may become overloaded, causing the vehicle to switch to the emergency program.

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Accelerator pedal sensor Technical product information

Accelerator pedal sensor

Technical product information

The accelerator pedal sensor transmits the position of the accelerator pedal to the engine control unit. Based on this information, the load requested by the driver can be implemented immediately.

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Honda Legend

Honda Legend

Scratching and knocking noises in the area of the windshield

If the above-mentioned problem is detected, one possible cause may be the windshield wiper system and/or the wiper blades. In such a case a faulty wiper arm (on the driver's side) is responsible for the noise generation.

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VW Caddy

VW Caddy

Engine Turns Itself On When Doors Are Opened

In the vehicles listed above, the engine may start itself when the radio remote control is operated or the door latch system is manually closed.

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Audi A4, A6, A8, Q7 Error code P3134

Audi A4, A6, A8, Q7

Error code P3134

This defect usually occurs in vehicles with a high mileage. One possible cause for this is too much play in the shaft bearing or in the ball heads of the intake manifold flap’s connecting rod.

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Porsche Cayenne  Error code: 16864/P0480

Porsche Cayenne

Error code: 16864/P0480

If the above defect is detected, it may be related to a defective radiator fan module. Only affects vehicles with two fan motors (dual fan module).

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Golf 6 rear combination lamp encoding Technical product information

Golf 6 rear combination lamp encoding

Technical product information

The exterior lighting on a vehicle offers a wealth of opportunities for customising the vehicle. Retrofitting LED rear combination lamps is a very popular modification. However, on modern vehicles it isn't enough to simply replace the lamps. In many cases the cables also need to be adjusted and the vehicle electric system control unit needs to be encoded accordingly.

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Renault Clio II Vehicle does not start

Renault Clio II

Vehicle does not start

If the error mentioned above is detected, one possible cause could be a faulty seal on the high-pressure safety valve. Defective seals cause the fuel to be diverted from the high-pressure side into the pump housing and fed into the low-pressure circuit.

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BMW 1 Series / 3 Series / 4 Series Unpleasant odour (fuel smell) in the vehicle interior

BMW 1 Series / 3 Series / 4 Series

Unpleasant odour (fuel smell) in the vehicle interior

In this repair case, the customer complains of an unpleasant odour (fuel smell) in the vehicle interior / passenger compartment.

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HELLA lighting – We got that!

The headlamps are sending out an SOS again? The saviour in their time of need: HELLA – We got that! We simply have a knack for lighting that performs reliably on any terrain.

MCC Smart Engine does not start, battery discharged

MCC Smart

Engine does not start, battery discharged

If the engine on the vehicles mentioned above does not start because of a discharged battery, this is often due to one-sided short-distance operation of the vehicle.

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Peugeot 308 Error code P1385 -

Peugeot 308

Error code P1385 - "Ignition misfire detection"

If the error mentioned above is detected in these vehicle models, one possible cause may be a poorly attached or defective knock sensor.

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Signal lights in cars Technical product information

Signal lights in cars

Technical product information

Signal lights have an important safety function. They demonstrate deceleration and a change in direction of the vehicle, and make the vehicle more visible to other road users when it is dark or during poor visibility.

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Ford Focus Poor engine running with increased oil consumption

Ford Focus

Poor engine running with increased oil consumption

If poor engine running with increased oil consumption is observed in the vehicle models mentioned above, then a possible cause may be defective crankcase ventilation. In some cases, a buzzing or whistling sound has also been heard.

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Hyundai Santa FE Error code C1274 -

Hyundai Santa FE

Error code C1274 - "Acceleration sensor function faulty"

If the defect mentioned above is detected, it may also be related to a defective ABS sensor ring. The ABS control unit constantly compares and evaluates the values of the acceleration sensor and wheel speed sensors.

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Opel Astra J Display code 16

Opel Astra J

Display code 16

Code 16 appears on the display with information, see operating instructions. Error code Diagnosegerät_B3881 corresponds to faulty tail light lamp or circuit.

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Volvo V60

Volvo V60

Engine stalls with slight pressure on the accelerator pedal after cold start

If no clear mechanical or electrical fault can be attributed to the error mentioned above during vehicle diagnostics, one possible cause is a software error in the engine control unit. In this case, the software version must be checked and updated if necessary.

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ABS/ESP control units for braking and driving dynamics

ABS/ESP control units for braking and driving dynamics

Technical product information

The Electronic Stability Programme (ESP) has the task of preventing lateral swerving when cornering or when faced with critical situations, e.g. during extreme driving manoeuvres. The system specifically intervenes in the braking system and in the engine and transmission management and keeps the vehicle on track.

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Fiat Punto 199 Engine stalls or engine does not start

Fiat Punto 199

Engine stalls or engine does not start

In the vehicles mentioned above, a broken cable in the engine wiring harness can cause the engine not to start or to stop while driving.

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VW | Audi | Seat | Skoda

Insufficient headlamp range, headlamps dazzle

After the main headlamp bulbs have been changed on the vehicles mentioned above, there may be insufficient illumination of the road or oncoming traffic may be dazzled. This is especially true when using H7 bulbs.

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Vacuum pumps for e-vehicles – We got that!

Are you looking for a product that guarantees full braking power even with hybrid or pure electric drive? We got that! As electronics experts for e-vehicles, we know: our electric vacuum pumps reliably stop vehicles and also really drive workshop business forward.

BMW Mini Cooper Faulty fuel gauge

BMW Mini Cooper

Faulty fuel gauge

If complaints are made that the fuel gauge of the above-mentioned vehicles is inaccurate or faulty in any way, a possible cause for this error is the fuel level sensor (fuel feed unit).

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Jaguar S-Type Ticking Sounds From Instrument Panel Area

Jaguar S-Type

Ticking Sounds From Instrument Panel Area

In the vehicles listed above, ticking noises can arise from the instrument panel or the instrument cluster area.

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Service work on the charging system Technical product information

Service work on the charging system

Technical product information

Automatic systems, such as the automatic start-stop system are installed to reduce the fuel consumption and emissions. There are different versions and requirements depending on the vehicle manufacturer.

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Opel Astra J Charge signal lamp flashes

Opel Astra J

Charge signal lamp flashes

A complaint has ben made that the charge signal lamp flashes in the vehicles specified above.

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HONDA Jazz II Headlamp failure

HONDA Jazz II

Headlamp failure

On the vehicles mentioned above, contact problems can cause the headlamps to fail.

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HELLA mass air flow sensors - We got that!

Thick air in the workshop? Not with our mass air flow sensors! Thanks to our OE expertise, our sensors meet the highest standards of quality and functionality – for optimum performance and low emissions. We got that!

Seat Ibiza (KJ) Atypical steering behavior

Seat Ibiza (KJ)

Atypical steering behavior

If the problem described above is determined, the cause could be an insufficiently secured steering column. In this case, there is the possibility that the screw (see image) was not tightened to the specified tightening torque when the steering column was fitted.

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VW Golf 3, Vento, Polo Engine not running true and with high speed

VW Golf 3, Vento, Polo

Engine not running true and with high speed

If the above fault with this error code is detected for this vehicle type, it may be caused by the throttle unit being clogged by carbon deposits.

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Check multi-function regulator

Check multi-function regulator

Technical product information

The ever increasing demand for electrical power requires particularly efficient and powerful alternators and regulators. These should have the option of consumer and battery management. For this reason, hybrid regulators are increasingly being replaced by monolithic regulators with new functions: these are called multi-function regulators.

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Volvo V70 Engine warning light illuminates

Volvo V70

Engine warning light illuminates

Should a loss of power occur in the above vehicles, an insufficiently fastened hose on the intercooler might be the cause. Whistling noises in the acceleration phase and simultaneous loss of motor power are frequently an indication for defects or faults in the area of the intercooler.

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Mercedes Vaneo Radio-controlled central locking system unlocks itself

Mercedes Vaneo

Radio-controlled central locking system unlocks itself

If the above fault is complained of in these vehicles, and if the passenger compartment lighting also fails to switch off while driving, there may be a contact problem in one of the sliding doors.

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Parking aid from HELLA – We got that!

Bleep, bleep, bleeeeeeep – someone must be teaching this parking aid to play the trumpet! As the workshop's friend, we have prepared something: our ultrasound-based parking aid. You can hear it when it really matters.

HELLA webinars

Bring the knowledge home! In the webinars, workshops experience training sessions from experts for experts.

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The Hella Workshop Lounge
- exclusively for you!

Step into the HELLA Workshop Lounge! We provide you with practical and entertaining information. Here you can feel comfortable as a workshop!

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Specific vehicle repair information

REPAIR INFORMATION

Vehicle-specific diagnostic and repair information relating to a variety of fault symptoms.

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Campaigns and special offers

CAMPAIGNS AND SPECIAL OFFERS

Here you will find an overview of the current campaigns and special offers from HELLA.

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Online product catalogue

ONLINE PRODUCT CATALOGUE

Quick, clear and efficient – Find the right HELLA Product!

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