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Car sensors, relays, control units parts

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Sensors, relays, control units: parts for top car models

Sensors, relays, control units car parts - all important information about operating method, mounting, diagnostics and service life

Sensors, relays, and control units are electronic devices whose main function is to oversee the operation of many car systems. The first ones monitor particular changes in the working environment. The second ones power the required branches of electrical circuits. The last ones assess the readings they receive and send commands to corresponding devices.

The design of sensors, relays, and control units

Generally, automotive sensors consist of a sensitive element enclosed by a plastic body, to which a wire connector is attached. The operating principle of the sensitive element is based on various physical and chemical properties of different materials. For example, heater resistors are used to measure temperature and strain gauges to measure pressure. Devices which determine position and speed are based on the Hall effect, that is, the inductive or magnetoresistive properties of certain materials.

Relays generally have a plastic body with an electromagnet, inside of which are movable and stationary contacts. When the electromagnet is powered, it drives the movable contact which opens or closes the circuit.

Control units consist of a microchip with a CPU, analog-to-digital (ADC) and digital-to-analog converters (DAC), a housing, and connectors for wires. The microchip includes a storage device with software.

Maintenance tips

  • Observe the torque specified by the manufacturer during installation. Many spare parts have a thread which can easily be damaged by overtightening.
  • Always replace technical fluids on time. The contaminants they contain can build up on the sensitive elements of measuring devices causing them to operate incorrectly.
  • You should always make sure that all elements in relays and fuses are properly attached. Loose fittings and the resulting vibrations have a devastating effect on elements of these parts.
  • Occasionally clean connectors using special products. Their contacts can start corroding if exposed to dirt and moisture.
  • Use only components that comply with the technical requirements of your vehicle.
  • Avoid amateur repairs to your vehicle’s electrical wiring.

Malfunction symptoms

A variety of symptoms can indicate faulty components. For example, if a throttle position or fuel consumption sensor fails, the engine no longer runs smoothly. In particular, its power is reduced and it starts jerking during acceleration. The engine may even stall while changing gears. Rough idling occurs as well. Sometimes when a device fails, the corresponding warning light goes off on the instrument panel.

If a relay is broken, the equipment it controls generally won’t work. Conversely, in some cases it can no longer be switched off. This usually happens when movable contacts get stuck.

Faulty control units make corresponding assemblies operate incorrectly: fuel pumps, injection system components, etc. Sometimes, the engine won’t start. It is also impossible to perform self-testing of the unit.

Malfunction causes

Moisture and dirt may get into loosely attached connectors, which results in corroded contacts or a short circuit. When the housing isn’t airtight, the contacts of microchips become oxidised as well. Reckless handling of a vehicle, such as the removal of the battery terminal while the engine is running can cause voltage spikes and make the equipment burn out. It is also dangerous to let sparks get onto electronic devices or wring when performing auto body works involving welding.

autodoc.co.uk: Only high-quality automotive products

We recommend that you buy sensors, relays, and control units from our online store. And here are the reasons why: All our spare parts are of high quality, our experienced specialists are always happy to help you choose a product, and our delivery is extremely quick.

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Top 15 of best sellers from the Sensors, relays, control units section

Recommended spare parts from the Sensors, relays, control units section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.

Buy Lambda sensor 17025 BOSCH 0 258 017 025 - Sensors, relays, control units parts online

Evaluation

A.K. 16.09.2023

Wanted assurance from a reputable company thatvthe item us genuine.

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Parts Details
  • Overall Length [mm]: 1000
  • Number of circuits: 5
  • Recommended change interval [km]: 250000
  • BOSCH: Lambda sensor
  • Item number: 0 258 017 025
  • Our price: £ 101,21
  • Condition: New
Details
Lambda sensor
Article number: 0 258 017 025
£ 101,21
price incl. 20% VAT, excl. delivery costs
Buy Lambda sensor DENSO DOX-0430 - Sensors, relays, control units parts online
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 450
  • Number of pins: 4
  • for OE number: C2N3717
  • Quality: OE
  • Weight [g]: 102
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0430
  • Our price: £ 103,52
  • Condition: New
Details
Lambda sensor
Article number: DOX-0430
£ 103,52
price incl. 20% VAT, excl. delivery costs
Buy Window regulator OP733 MIRAGLIO 30/1983 - Sensors, relays, control units parts online
Parts Details
  • Fitting Position: Left
  • Operating Mode: Electronic
  • Number of Doors: 2
  • Supplementary Article / Supplementary Info: without electric motor
  • Combi Switch Function: with comfort function
  • Window Regulator: Single Rail Window Lift
  • MIRAGLIO: Window regulator
  • Item number: 30/1983
  • Our price: £ 64,31
  • Condition: New
Details
Window regulator
Article number: 30/1983
£ 64,31
price incl. 20% VAT, excl. delivery costs
Buy Lambda sensor DENSO DOX-0428 - Sensors, relays, control units parts online
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 300
  • Number of pins: 4
  • for OE number: C2C29250
  • Quality: OE
  • Weight [g]: 95
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0428
  • Our price: £ 114,99
  • Condition: New
Details
Lambda sensor
Article number: DOX-0428
£ 114,99
price incl. 20% VAT, excl. delivery costs
Control Unit, glow plug system 0 201 010 070 BERU GR070 - Sensors, relays, control units spare parts order
Parts Details
  • Pre-glow time [s]: 5
  • Voltage [V]: 12
  • Number of Cylinders: 4
  • BERU: Control Unit, glow plug system
  • Item number: GR070
  • Our price: £ 105,97
  • Condition: New
Details
Control Unit, glow plug system
Article number: GR070
£ 105,97
price incl. 20% VAT, excl. delivery costs
Lambda sensor DENSO DOX-1415 - Sensors, relays, control units spare parts order
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Planar probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 315
  • Number of pins: 4
  • for OE number: 36531PPA003
  • Quality: OE
  • Weight [g]: 91
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-1415
  • Our price: £ 103,52
  • Condition: New
Details
Lambda sensor
Article number: DOX-1415
£ 103,52
price incl. 20% VAT, excl. delivery costs
Lambda sensor LS 6924 BOSCH 0 258 006 924 - Sensors, relays, control units spare parts order
Parts Details
  • Overall Length [mm]: 325
  • Number of circuits: 4
  • Recommended change interval [km]: 250000
  • BOSCH: Lambda sensor
  • Item number: 0 258 006 924
  • Our price: £ 69,44
  • Condition: New
Details
Lambda sensor
Article number: 0 258 006 924
£ 69,44
price incl. 20% VAT, excl. delivery costs
Control Unit, glow plug system E2110022368A2 BERU GSE108 - Sensors, relays, control units spare parts order

Evaluation

G.I. 10.01.2024

This is the OM BMW, BMW use exactly the same item Beru and they just stamp them logo on the top. This is just at least half price.

D.J. 20.01.2023

It has an excellent reputation for being the best one to choose for my car model

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Parts Details
  • Voltage [V]: 12
  • Glow Plug Design: after-glow capable
  • Number of pins: 1, 12
  • Number of Cylinders: 6
  • BERU: Control Unit, glow plug system
  • Item number: GSE108
  • Our price: £ 88,73
  • Condition: New
Details
Control Unit, glow plug system
Article number: GSE108
£ 88,73
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Lambda sensor DENSO DOX-0261
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Planar probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 510
  • Number of pins: 4
  • for OE number: 8946728010
  • Quality: OE
  • Weight [g]: 100
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0261
  • Our price: £ 94,99
  • Condition: New
Details
Lambda sensor
Article number: DOX-0261
£ 94,99
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Lambda sensor DENSO DOX-0269
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Thread pre-greased, Lambda Sensor
  • Cable Length [mm]: 230
  • Number of pins: 4
  • for OE number: 8946520730
  • Quality: OE
  • Weight [g]: 86
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0269
  • Our price: £ 63,51
  • Condition: New
Details
Lambda sensor
Article number: DOX-0269
£ 63,51
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Alternator Regulator GER 024 BERU GER024
Parts Details
  • Voltage [V]: 14,4
  • Manufacturer Restriction: BOSCH
  • BERU: Alternator Regulator
  • Item number: GER024
  • Our price: £ 21,40
  • Condition: New
Details
Alternator Regulator
Article number: GER024
£ 21,40
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Pressure Control Valve, common rail system DELPHI 9109-903

Evaluation

M.S. 28.11.2023

Its original part for Renault Megan 2 2003 1.5 dci 60kw

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Parts Details
  • DELPHI: Pressure Control Valve, common rail system
  • Item number: 9109-903
  • Our price: £ 80,53
  • Condition: New
Details
Pressure Control Valve, common rail system
Article number: 9109-903
£ 80,53
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Relay, main current BOSCH 0 986 AH0 602
Parts Details
  • Combi Switch Function: Normally Open Contact
  • Current Strength [A]: 30
  • Voltage [V]: 12
  • Number of pins: 5
  • Relay function: Normally open contact
  • Housing Type: Synthetic Material Housing
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: 100
  • Housing Colour: Black
  • Supplementary Article / Supplementary Info: with suppression diode
  • Resistor [Ohm]: 90
  • BOSCH: Relay, main current
  • Item number: 0 986 AH0 602
  • Our price: £ 11,44
  • Condition: New
Details
Relay, main current
Article number: 0 986 AH0 602
£ 11,44
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Lambda sensor DENSO DOX-0205
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Thread pre-greased, Lambda Sensor
  • Cable Length [mm]: 530
  • Number of pins: 4
  • for OE number: 8946512540
  • Quality: OE
  • Weight [g]: 103
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0205
  • Our price: £ 78,25
  • Condition: New
Details
Lambda sensor
Article number: DOX-0205
£ 78,25
price incl. 20% VAT, excl. delivery costs
Sensors, relays, control units parts - Lambda sensor DENSO DOX-0510

Evaluation

F.R. 05.09.2022

Used it to replace the sensor that's under located under the hood of my Toyota Auris 1.33 2009 - Next to Engine Pre Cat Bank 1 - Good delivery time, Excellent sensor - Engine management light that was on for 2 years went The sensor was the problem and the Stop/Start function which hadn't worked for 2 years also started to work. Very happy with my purchase! Glad I paid a bit extra for a good quality denso sensor rather than some of the cheaper alternatives stocked here and elsewhere.

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Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 290
  • Number of pins: 4
  • for OE number: 89467-53040
  • Quality: OE
  • Weight [g]: 86
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0510
  • Our price: £ 105,19
  • Condition: New
Details
Lambda sensor
Article number: DOX-0510
£ 105,19
price incl. 20% VAT, excl. delivery costs