Mercedes Warm-Up Regulator BOSCH 0438140148

The Mercedes warm-up regulator BOSCH 0438140148 is designed to restore proper cold-start fuel control in compatible Mercedes-Benz 380, 450, and 500 models. As a key part of the fuel injection system, the warm-up regulator adjusts control pressure during engine warm-up, supporting smoother starts and more stable running when the engine is cold. Over time, a worn regulator can cause rough idle, hard starting, hesitation, or poor drivability.

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REMANUFACTURED

Mercedes Warm-up Regulator

Bosch 0438140148 - 0 438 140 148

Mercedes No. 1160700162

When depleted, use 0438140068.

The price includes a $100 core. Refundable upon return of your core.

380SE 1984 USA

380SEL 1981 USA

380SEL 82-83 USA

380SEC 82-83 USA

380SL 82-84 USA

380SL 1981 USA

380 SLC 1981 USA

450SE 1980 USA

450SEL 1980 USA

450SL 1980 USA

450SLC 1980 USA

500SEC 1984 USA

500SEL 1984 USA

We sell parts by Bosch or vehicle part number. For detailed information about the proper application for your car, contact us or consult your dealership's parts department.

Twelve-month unlimited warranty.

Terms: 12-month prorated warranty. Exchange only.

NO RETURNS - NO CASH REFUNDS

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Built for Select Mercedes 380, 450, and 500 Models

This remanufactured warm-up regulator fits select Mercedes 380, 450, and 500 applications, making it a valuable solution for owners of classic and older Mercedes models. It is manufactured to match the specifications of Bosch 0438140148, helping ensure accurate compatibility and proper system operation. For vehicles that rely on precise fuel pressure management, using the correct regulator is essential. Choosing a remanufactured part that aligns with the original design helps maintain engine response, cold-start behavior, and overall drivability while supporting long-term reliability.

Quality Remanufactured Replacement for Lasting Value

As a remanufactured component, this Mercedes warm-up regulator is rebuilt with a focus on performance, function, and durability. Remanufacturing helps deliver a cost-effective alternative to buying new while still meeting the needs of owners who expect dependable results. This part is ideal for restoration projects, maintenance repairs, and everyday driving applications where fuel system accuracy matters. By replacing a failing warm-up regulator, you can improve throttle response, stabilize idle quality, and reduce cold-start issues.