# Hertz KB6 OBDII to Mercedes-Benz 14-Pin Diagnostic Adapter

**URL:** https://aio.lv/en/product--hertz-655-uniw--12491808
**Data updated:** 2026-06-02 20:13 (EEST)
**Category:** Car Accessories
**Manufacturer:** HERTZ
**Manufacturer code:** 655-uniw
**EAN:** 5907621808891
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hertz-655-uniw--12491808

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Hertz KB6 is a specialized diagnostic adapter designed to convert a standard 16-pin OBDII interface to a Mercedes-Benz 14-pin connector. This cable enables the connection of modern diagnostic scanners to older Mercedes-Benz vehicle models equipped with the proprietary 14-pin diagnostic port. It is an essential tool for automotive technicians and enthusiasts performing diagnostics, fault code reading, and vehicle maintenance on compatible legacy systems.

## Long description

The Hertz KB6 OBDII to Mercedes-Benz 14-Pin Diagnostic Adapter is a high-quality interface cable engineered to bridge the gap between modern diagnostic equipment and legacy vehicle systems. This adapter allows users to connect a standard 16-pin OBDII diagnostic scanner to older Mercedes-Benz vehicles that utilize the proprietary 14-pin diagnostic port. By providing a reliable physical connection, it ensures that automotive technicians and vehicle owners can access onboard systems for maintenance and troubleshooting purposes.
Advantages
This adapter offers a seamless solution for integrating contemporary diagnostic tools with older automotive technology. Its robust construction ensures a stable signal transmission between the vehicle's electronic control units and the diagnostic scanner, minimizing the risk of communication errors during data retrieval. The compact design makes it easy to store in a toolbox or glove compartment, ensuring it is always available when needed for diagnostic tasks on compatible Mercedes-Benz models.
Suitable for
Reading and clearing diagnostic trouble codes on older Mercedes-Benz vehicles.
Performing routine electronic system maintenance and diagnostics.
Connecting modern OBDII scanners to legacy 14-pin diagnostic ports.
Automotive repair shops specializing in classic or older Mercedes-Benz models.
When it may not be suitable
This adapter is designed exclusively for vehicles equipped with the specific 14-pin Mercedes-Benz diagnostic port. It will not function with vehicles that use different proprietary connectors or standard 16-pin OBDII ports directly. Furthermore, it does not convert the communication protocol itself, so the connected diagnostic scanner must be compatible with the specific vehicle's communication language.
Key specifications
Connector A: Standard 16-pin OBDII female port.
Connector B: 14-pin Mercedes-Benz proprietary male port.
Compatibility: Older Mercedes-Benz models with 14-pin diagnostic interface.
Cable type: Diagnostic signal conversion adapter.
How to use
To use the Hertz KB6 adapter, first locate the 14-pin diagnostic port on your Mercedes-Benz vehicle, which is typically found in the engine bay or near the fuse box depending on the model. Connect the 14-pin end of the adapter securely to the vehicle's port. Once connected, plug your standard 16-pin OBDII diagnostic scanner into the female end of the adapter. Turn the vehicle's ignition to the accessory or on position as required by your scanner's manual to begin the diagnostic process.
What to consider before purchase
Verify that your vehicle is equipped with the 14-pin diagnostic port.
Ensure your diagnostic scanner supports the communication protocols used by your specific Mercedes-Benz model.
Check the physical space around the diagnostic port to ensure the adapter connector fits properly.
Usage recommendations: Always ensure the vehicle ignition is turned off before connecting or disconnecting the diagnostic adapter to prevent potential electrical surges or communication errors. Keep the connector pins clean and free of debris to maintain optimal signal quality during diagnostic sessions.

## FAQ

### How much does the Hertz KB6 OBDII to Mercedes-Benz 14-Pin Adapter cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 141 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HERTZ products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HERTZ service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12491808/68821427_large.webp