Renault ECU – 8200, 23710, SID & Bosch Engine Control Units

Renault engine control units – ECU identification by OEM and manufacturer part number

A Renault engine control unit (ECU), also known as an ECM or engine computer, manages engine operation and communicates with other electronic systems in the vehicle. Depending on the engine and ECU generation, the module may control fuel injection, ignition in petrol engines, electronic throttle operation, fuel pressure, turbocharger management and selected emissions-related systems.

For replacement purposes, however, the most important step is identifying the exact control unit installed in the vehicle. Renault has used numerous engine-management systems from Bosch, Continental, Magneti Marelli, Delphi and other manufacturers. Similar housings or connectors do not confirm identical hardware, software or vehicle-specific security data.

Renault 7700, 8200 and 23710 ECU numbers

Renault engine control modules use several characteristic OEM numbering systems. Particularly common references in the Auto24Parts catalogue begin with:

• 7700...,
• 8200...,
• 23710...,
• and newer related Renault references such as 237D....

Examples currently found in the range include:

• 7700101909,
• 7700108489,
• 7700868306,
• 8200051666,
• 8200520036,
• 8200462452,
• 237102747R,
• 237102265R,
• 237106229R,
• 237104833R,
• 237106677R.

The shared beginning of a number does not make two ECUs interchangeable. The complete reference, including all final letters, should always be checked.

Why does a Renault ECU have several identification numbers?

A Renault engine computer may display both a Renault OEM number and one or more references assigned by the electronics manufacturer. Depending on the control unit, the label can contain:

• Renault 7700..., 8200... or 23710... OEM number,
• Bosch 0261... or 0281... reference,
• Continental / Siemens reference such as S180... or A2C...,
• Magneti Marelli IAW designation,
• ECU family such as SID307 or SID310,
• additional hardware, software or calibration identifiers.

Using several numbers together usually gives a much more precise result than searching only for “Renault ECU”.

Renault 237104833R / S180153110A / SID307

One of the current control units is the Renault ECU 237104833R / S180153110A / SID307.

This module combines Renault number 237104833R, electronics reference S180153110A and the SID307 engine-management family.

All three identifiers are useful. Searching only for SID307 is not sufficient because different SID307 modules can carry different Renault and manufacturer numbers.

Renault A2C38641900 / 237106677R / SID310

Another current Continental-family module is the Renault ECU A2C38641900 / 237106677R / SID310.

The control unit carries Renault reference 237106677R, manufacturer number A2C38641900 and the SID310 family designation.

SID310 and SID307 are separate engine-management families. Even within one SID family, the complete OEM and electronics manufacturer references must still be compared.

Renault 0281032227 / 237106229R

A Bosch example in the current range is the Renault ECU Bosch 0281032227 / 237106229R.

This unit combines Bosch number 0281032227 with Renault reference 237106229R. The Bosch number provides an additional way to distinguish the module from other Renault ECUs using the 23710 numbering family.

Renault 0281019325 / 237102747R

Another Bosch engine computer is the Renault ECU 0281019325 / 237102747R.

The module belongs to an earlier Bosch 028101... numbering sequence than the 0281032227 example above. Both the Renault and Bosch references should therefore be compared rather than selecting a unit only because it comes from the same vehicle family.

Renault Laguna – Bosch 0281010299 / 8200048300 / 8200085936

Older Renault 8200... numbering is clearly represented by the Renault Laguna ECU Bosch 0281010299 / 8200048300 / 8200085936.

The Bosch reference may also be written as 0 281 010 299. The same module carries Renault numbers 8200048300 and 8200085936.

This is a good example of why one engine control unit can appear in searches under several different reference numbers.

Renault Clio 1.2 – Magneti Marelli IAW5NR2C5 / 8200181482

Renault petrol engine management is not limited to Bosch or SID modules. The current catalogue also includes the Renault Clio 1.2 Magneti Marelli ECU IAW5NR2C5 / 8200181482.

The complete product identification includes:

• IAW5NR2C5,
• 8200181482,
• 16481134,
• 8200285314,
• 16698014.

These multiple references are useful for identifying the exact control unit. Another Renault Clio ECU with a similar IAW housing should not automatically be considered compatible.

Renault Clio 1.2 – 7700101909

Another current Clio product is the Renault Clio 1.2 ECU 7700101909.

This module belongs to an older Renault 7700... reference family and demonstrates the wide range of engine-management generations covered by the category.

The vehicle description “Renault Clio 1.2 ECU” is therefore not enough by itself. Several Clio 1.2 control units with completely different numbers appear in the Renault range.

Renault Avantime 3.0 24V – Bosch 0261206612

For Renault Avantime 3.0 24V, the catalogue includes the Renault Avantime Bosch ECU 0261206612 / HOM8200036750 / 8200404515.

The module also carries reference 1039S07993. This older petrol ECU uses a completely different Bosch numbering system from the later Renault diesel 0281... modules.

Renault SID307 and SID310 engine control units

Continental / Siemens SID engine-management systems form an important group in newer Renault applications. Two current examples are:

• 237104833R / S180153110A / SID307,
• 237106677R / A2C38641900 / SID310.

The SID designation helps identify the ECU generation, but the family name alone does not determine exact compatibility. Renault OEM number and manufacturer reference should also be checked.

Renault Magneti Marelli IAW engine control units

Selected Renault petrol engines use Magneti Marelli IAW control units. Current examples include IAW5NR2C5 and another Clio module identified as IAW5NR2.CIR.

The complete IAW suffix matters. Similar IAW-family modules can use different software and Renault OEM numbers.

Other modules from this manufacturer can be found in the Magneti Marelli automotive electronics section.

Bosch engine control units for Renault

Renault has also used many generations of Bosch engine electronics. The current catalogue contains older petrol references beginning with 026120..., diesel control units from the 028101... family and newer 028103... modules.

Examples include:

• 0261206612 / 8200036750 – Renault Avantime,
• 0281010299 / 8200048300 / 8200085936 – Renault Laguna,
• 0281019325 / 237102747R,
• 0281032227 / 237106229R.

You can also browse other Bosch automotive control units.

Renault Clio uses many different ECU families

Clio is particularly useful for showing why vehicle model alone cannot determine the correct engine computer. The current Renault catalogue includes several separate Clio references, including:

• 7700101909 – Clio 1.2,
• 7700108489 – Clio 1.2,
• IAW5NR2C5 / 8200181482 / 8200285314 – Clio 1.2,
• IAW5NR2.CIR / 8200181482 / 8200254498,
• 28321424 / 237101989R / 237101990R,
• S115301102B / 7700867270 / 7700103798.

These modules should be identified individually using their complete labels.

Renault passenger and commercial vehicle ECUs

The Renault category is not limited to passenger cars. The current catalogue also includes engine control units for commercial applications such as Mascott and Magnum.

Examples include Bosch 0281001892 / 8200053009 for a Renault Mascott application and Renault Magnum references such as 5010284080 and 5010284082.

Commercial-vehicle modules should be selected using the same principle: exact part number first, followed by model and engine information.

Used / locked Renault ECU

A standard used / locked Renault ECU normally retains data from the vehicle in which it was previously installed. Depending on the module and security system, further electronic preparation may be required before it can operate in another vehicle.

This type of module is mainly intended for workshops and automotive electronics specialists equipped to prepare and programme replacement control units.

Renault ECU ready for programming

Many current Renault products are available in locked and ready-for-programming variants. The exact preparation depends on the ECU family and vehicle application.

Programming, configuration or security-related adaptation may still be required after installation.

See the ECU preparation options page for details.

VIRGIN Renault ECU

For selected Renault control units, the ECU may be reset or prepared in a VIRGIN state for subsequent adaptation to another vehicle.

The required installation procedure depends on the ECU type and electronic architecture of the vehicle. A VIRGIN module should therefore not automatically be considered Plug & Play unless the specific product description states this.

Renault immobiliser and replacement ECU

In many Renault vehicles, engine-start authorisation involves communication between the ECU and the vehicle security system. A standard used ECU can still contain security data from its previous vehicle.

Depending on the ECU type and preparation method, adaptation, synchronisation, data transfer or another programming procedure may therefore be required.

Renault ECU cloning

For selected compatible control units, Renault ECU cloning may be another preparation method. If the necessary information can be correctly read from the original ECU, relevant data may be transferred to a compatible replacement module.

Depending on the control-unit design, transferred information may include memory content, software, configuration and immobiliser-related data.

The possibility of cloning depends on the ECU type and condition of the original module. If the required information cannot be recovered, another preparation method may be necessary.

Renault ECU diagnostics and CLIP

Renault-specific diagnostic procedures are commonly associated with the Renault CLIP diagnostic system. Depending on the vehicle and ECU generation, diagnostic work may include reading fault codes, checking live parameters, identifying control units and performing selected configuration or adaptation procedures.

The exact procedure after ECU replacement depends on the control unit and vehicle, so not every Renault module should be treated as requiring the same programming process.

Common symptoms that may indicate a Renault ECU problem

A defective engine control unit can cause different symptoms, but similar problems may also result from sensors, wiring, actuators, power-supply faults or communication problems.

• engine does not start,
• no diagnostic communication with the ECU,
• engine stalls or is difficult to restart,
• limp mode or reduced engine power,
• injector or ignition-control faults,
• incorrect throttle response,
• fuel-pressure or turbocharger-control problems,
• CAN communication errors,
• diagnostic trouble codes that repeatedly return,
• internal ECU memory or electronic faults.

Before replacing the ECU, check battery voltage, module power supply, ground connections, fuses, relays, connectors and wiring. A diagnostic trouble code alone does not prove that the engine control unit itself is defective.

Renault engine control units by exact part number

Searching by the complete Renault and electronics manufacturer references is one of the most effective ways to locate the correct ECU:

• 237104833R / S180153110A / SID307 – Renault ECU
• A2C38641900 / 237106677R / SID310 – Renault ECU
• 0281032227 / 237106229R – Renault Bosch ECU
• 0281019325 / 237102747R – Renault Bosch ECU
• 0281010299 / 8200048300 / 8200085936 – Renault Laguna ECU
• IAW5NR2C5 / 8200181482 / 8200285314 – Renault Clio 1.2 ECU
• 7700101909 – Renault Clio 1.2 ECU
• 0261206612 / 8200036750 / 8200404515 – Renault Avantime 3.0 24V ECU

How to check Renault ECU compatibility before ordering

Take a clear photo of the complete original ECU label. The Renault 7700, 8200 or 23710 number, Bosch, Continental, Magneti Marelli, Delphi or other manufacturer reference and any SID, IAW, hardware or software identification should all be readable.

If you need help identifying the correct replacement module, contact Auto24Parts and send the photo together with the Renault model, model year, engine capacity, power output and engine version.

For other vehicle makes, browse the complete engine control unit catalogue. Other Renault electronic components can also be found in the Renault ABS pump category.

Before ordering, you can also review our How to Buy guide, Shipping & Delivery information and Returns, Warranty & Complaints conditions.

FAQ – Renault ECU and Engine Control Units