Weistec

M133 ECU Tune

$999.00

SKU: M133-ECU-TUNE

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

Unlock the full potential of your Mercedes-Benz 2.0L turbocharged M133 engine with the Weistec M133 ECU Tune. The Weistec M133 ECU Tune features include up to +80 HP and +183 TQ gains, improved throttle response for a more connected driving feel, and the elimination of the factory top speed limiter. It also optimizes fuel and spark maps to maximize performance and efficiency from your engine. This ECU tune is compatible with A45, CLA45, and GLA45 models (chassis codes C117, W176, X156) equipped with the M133 engine.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Available on iOS & Android

Specifications

BrandWeistec
Part NumberM133-ECU-TUNE
CategoryIgnitions and Electrical

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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