Smart ABS Pumps – Bosch ABS / ESP Units

Smart ABS Pump – Hydraulic Unit and Electronic Controller

A Smart ABS pump is part of the anti-lock braking and vehicle stability system. A complete unit normally combines a hydraulic block, electric pump motor, solenoid valves and an electronic ABS / ESP controller.

Depending on the vehicle generation and system version, the same part may be searched for as:

• Smart ABS pump,
• Smart ABS module,
• Smart ABS control unit,
• Smart ESP pump,
• Smart ABS hydraulic unit,
• Smart ForTwo ABS pump,
• Bosch ABS pump Smart.

For accurate identification, the complete numbers from the original assembly are more important than the name used to describe the part.

How to choose the correct Smart ABS pump

Smart ABS assemblies can contain several different identification numbers. Before ordering, compare the complete label on the original unit.

Important references can include:

• complete Bosch hydraulic pump number,
• Smart OEM number,
• electronic ABS controller number,
• all suffix letters and digits,
• additional production or system references,
• Smart model and generation as supporting information.

Do not select an ABS pump only because the housing and electrical connector look identical. Different versions can use the same basic construction while having different electronics, software or hydraulic configuration.

Bosch ABS pumps for Smart

Many Smart ABS assemblies in the Auto24Parts catalogue are manufactured by Bosch.

Typical Bosch number families include:

• 026521...,
• 026522...,
• 026523...,
• 026526... for the hydraulic unit,
• 026595... or 027300... for the electronic section on selected systems.

The prefix identifies only a broad Bosch number family. The complete number must be checked.

Smart ABS 0265215487 / 0004765V005 / 0273004235

One of the Smart ABS units in the catalogue is the Smart Bosch ABS pump 0265215487 / 0004765V005 / 0273004235.

Its main references are:

• Bosch 0 265 215 487,
• 0265215487,
• 0004765V005,
• 0273004235.

This combination should be compared in full with the original unit.

0004765V005 and 0004765V006 – suffix matters

The Smart catalogue also contains a very similar Bosch unit with:

• 0265215489,
• 0004765V006,
• 0273004235.

Although both systems can share the electronic reference 0273004235, the hydraulic Bosch number and Smart OEM version are different.

For this reason, 0004765V005 and 0004765V006 should not automatically be treated as the same ABS pump.

Smart ForTwo 0265225185 / 0012793V002 / 0265950077

Another confirmed unit is the Smart ForTwo Bosch ABS pump 0265225185 / 0012793V002 / 0265950077.

Important numbers include:

• Bosch 0 265 225 185,
• 0265225185,
• 0012793V002,
• 0 265 950 077,
• 0265950077.

Both the hydraulic-pump number and ABS ECU number are useful when confirming compatibility.

Smart ForTwo 451 – A4514200575 / 0265235467

For selected Smart ForTwo applications, the catalogue includes the ABS pump A4514200575 / Bosch 0265235467 / 0265950786.

The complete set of identifiers includes:

• A4514200575,
• 0265235467,
• 0 265 950 786,
• 0265950786.

The Smart OEM number beginning with A451... is especially useful when searching for a pump for this generation.

Smart ForTwo – A4515400045 / 0265235025 / 0265950478

Another Smart ForTwo unit is the Bosch ABS pump 0265235025 / A4515400045 / 0265950478.

Its important references are:

• 0 265 235 025,
• 0265235025,
• A4515400045,
• 0 265 950 478,
• 0265950478.

This is a different combination from A4514200575 / 0265235467 / 0265950786, even though both belong to Smart ForTwo applications.

Smart ForTwo 453 – A4539003001 / 0265260969

For a later Smart generation, the catalogue includes the Smart ForTwo ABS pump A4539003001 / Bosch 0265260969 / 0265956320.

The unit carries:

• 0 265 260 969,
• 0265260969,
• A4539003001,
• 476603428R,
• 0265956320.

The presence of several references on the same assembly is normal. When possible, compare all of them with the original ABS pump.

Smart 451 and Smart 453 ABS pumps are different families

The model-generation identifier can also help narrow the search.

Examples include:

• A4514200575 / 0265235467 / 0265950786,
• A4515400045 / 0265235025 / 0265950478,
• A4539003001 / 0265260969 / 0265956320.

A shared Smart model name does not mean that ABS assemblies from different generations are interchangeable.

ABS pump number and ABS ECU number

A complete Smart ABS assembly can carry separate references for different parts of the unit.

For example:

• 0265235467 – Bosch hydraulic ABS unit number,
• A4514200575 – Smart OEM reference,
• 0265950786 – Bosch ABS electronics reference.

When the complete pump is being replaced, it is useful to verify the combination rather than relying on just one number.

Common symptoms of a Smart ABS system fault

Possible symptoms can include:

• ABS warning light,
• ESP or stability-control warning message,
• traction-control function unavailable,
• ABS system inactive,
• loss of communication with the ABS controller,
• internal pump or controller fault codes,
• hydraulic pump motor faults,
• solenoid-valve related errors.

These symptoms do not automatically confirm a defective ABS pump. Wheel-speed sensors, wiring, power supply, connectors and other braking-system components can cause similar faults.

ABS warning light in a Smart – what should be checked?

Before replacing the complete pump, it is worth checking:

• wheel-speed sensors,
• sensor wiring,
• power supply to the ABS controller,
• ground connections,
• fuses and relays,
• electrical connector and pins,
• CAN communication,
• hydraulic-system fault codes.

Diagnostic trouble codes and live sensor values can help determine whether the fault is located in the ABS pump or elsewhere in the vehicle.

No communication with the Smart ABS module

If diagnostic equipment cannot communicate with the ABS controller, check the vehicle-side electrical supply before replacing the module.

No communication can result from:

• internal electronic failure,
• missing power supply,
• poor ground connection,
• damaged wiring,
• corroded connector pins,
• communication-network faults.

Does a used Smart ABS pump require coding?

Not every Smart ABS unit should be assumed to require exactly the same programming procedure.

Depending on the model, generation and controller version, replacement may involve:

• vehicle configuration coding,
• basic settings,
• steering-angle sensor calibration,
• fault-code clearing after repair,
• other diagnostic procedures required by the specific ABS / ESP system.

The exact procedure should be confirmed for the vehicle and part number being installed.

Does the brake system need bleeding after replacing the ABS pump?

When the complete hydraulic ABS assembly is removed, the brake-fluid circuit is opened. The braking system therefore needs to be correctly serviced and bled according to the vehicle manufacturer's procedure.

Depending on the system, diagnostic equipment may be required to operate the ABS valves or pump during the bleeding process.

If only a separately removable electronic controller is replaced without opening the hydraulic system, the required procedure may be different.

Complete ABS pump or electronic controller only?

Before ordering, determine whether the fault concerns:

• the electronic ABS / ESP controller,
• the hydraulic block,
• the electric pump motor,
• or the complete assembly.

If you need only an electronic controller rather than a complete hydraulic unit, see our ABS / ESP / ASR control units.

Why choose an original used Smart ABS pump?

An original used ABS assembly retains the OEM housing, hydraulic configuration, electrical connectors and manufacturer identification designed for the vehicle.

The main advantage is the ability to select the replacement using the same Bosch and Smart reference numbers as the original component.

Compatibility should still be confirmed carefully before installation, because one Smart model can use several different ABS-system variants.

How to search for a Smart ABS pump by part number

Useful search combinations include:

• Smart ABS pump 0265215487 0004765V005,
• Smart ABS module 0273004235 0004765V005,
• Smart ForTwo ABS 0265225185 0012793V002,
• Smart ABS ECU 0265950077,
• Smart 451 ABS pump A4514200575 0265235467,
• Smart ForTwo 0265950786 A4514200575,
• Smart ABS pump A4515400045 0265235025,
• Smart ForTwo ABS 0265950478,
• Smart 453 ABS pump A4539003001 0265260969,
• Smart ABS ECU 0265956320.

Exact number combinations usually provide much more precise results than searching only for “Smart ABS pump”.

Selected Smart ABS pumps

For an older Smart application, see the Bosch 0265215487 / 0004765V005 / 0273004235 ABS pump.

For selected Smart ForTwo vehicles, the catalogue includes the 0265225185 / 0012793V002 / 0265950077 unit and the A4514200575 / 0265235467 / 0265950786 pump.

Other examples include the A4515400045 / 0265235025 / 0265950478 unit and the later A4539003001 / 0265260969 / 0265956320 Smart ForTwo ABS pump.

Related Smart and ABS categories

• Complete ABS Pumps
• ABS / ESP / ASR Electronic Control Units
• Smart Engine Control Units – ECU
• Bosch Automotive Electronics
• Electronic Car Parts

How to confirm compatibility before ordering

If you are unsure which ABS pump is correct, contact Auto24Parts.

For compatibility verification, send:

• a clear photo of the complete original ABS pump label,
• full Bosch pump number,
• Smart OEM number,
• ABS ECU number,
• all additional suffixes and references,
• Smart model and generation,
• production year if known.

The complete combination of numbers from the original unit is the safest basis for selecting a replacement ABS pump.

Ordering, Payment, Delivery and Returns

Information about ordering is available in our How to Buy guide. Payment options are listed under Secure Payment Methods, while shipping information can be found on the Shipping & Delivery page.

Current information about returns, complaints and warranty is available under Returns, Warranty & Complaints.

FAQ – Smart ABS Pumps