Which Infiniti Q50 does the S180144207 smart key fit?

The S180144207 smart key fits the Infiniti Q50 2016-2019 with the 5-button layout. Match the part number printed on the back of the original key, and the button layout, before ordering. Keys for the same car can differ by trim, market and button count.

Is the FCC ID enough to pick the right key?

No. The FCC ID KR5S180144014 is a radio approval that Infiniti also uses on 285E3-4RA0B, 285E3-9HS4A, 285E3-3TP5A. Those keys can fit other cars or have other buttons, so the part number S180144207 on the original key is the deciding reference.

What frequency and transponder chip does the S180144207 key use?

The S180144207 smart key transmits at 433 MHz and carries a HITAG AES, ID 4A (NCF29A1M) transponder inside the housing. No separate chip is needed, but the key must be registered to the car with a diagnostic tool before it unlocks the doors or starts the engine.

How is the Infiniti Q50 2016-2019 smart key programmed?

The Infiniti Q50 2016-2019 smart key is programmed over the OBD-II port with the dealer system or a locksmith key programmer that covers this model. Registration needs the BCM PIN and erases every stored key, so register all keys in one session.

Is the emergency blade included with the S180144207 key?

No. The S180144207 smart key is supplied as the key only, without its emergency insert blade. Source the blade separately and cut it to the vehicle's key code, by code or by decoding the door lock. Check the blade profile against the original key.

Is this S180144207 key a genuine Infiniti part?

Yes. This listing is a genuine factory Infiniti S180144207 smart key, supplied new and unprogrammed, without the original dealer box, without the emergency blade. It is programmed to the car over OBD like any new key. Match the part number on the original first.

Which battery does the S180144207 smart key take?

The S180144207 smart key runs on a CR2032 coin cell battery, fitted inside the housing. Replace it when the range drops or the dashboard shows a low key battery warning. If the battery is flat, hold the key against the start button to start the car.

Infiniti Q50 2016-2019 Key KR5S180144014 S180144207 No Box

Name: Infiniti Q50 2016-2019 Smart Key 5-button 433MHz - S180144207 - Without Box - Genuine · OEM · New
Brand: Infiniti
SKU: B05515
Price: 60 AED
Availability: InStock

Specification

Value

Color

Black

Condition

Genuine - New, Without Box

Frequency

433 MHz

Buttons Count

5-buttons

Vehicle Make

Infiniti

Weight

0.06 kg

Genuine · OEM · New

Infiniti Q50 2016-2019 Smart Key 5-Button

5-button · 433 MHz · ID4A · FCC ID KR5S180144014 · Part S180144207

Buttons

433 MHz

Frequency

ID4A

Transponder chip

CR2032

Battery

⭐ Built for the Infiniti Q50 2016-2019, this 5-button smart key is a new genuine factory Infiniti unit of part number S180144207, running at 433 MHz with a HITAG AES, ID 4A (NCF29A1M) transponder. It is supplied as the key only, without the emergency blade, and is registered over OBD with a diagnostic tool. The same radio approval is fitted to 285E3-4RA0B, 285E3-9HS4A, 285E3-3TP5A, so the part number, not the FCC ID, decides the order.

⚙️ Key features

5-button layout

5 buttons as fitted to the Q50 proximity key, with push-button start.

433 MHz with ID4A

433 MHz transmitter paired with a HITAG AES, ID 4A (NCF29A1M) transponder for proximity entry and push-button start.

FCC ID is shared

Its radio approval is also used on 285E3-4RA0B, 285E3-9HS4A; the part number S180144207 is the reference.

CR2032 coin cell

Runs on a user-replaceable CR2032 battery. The emergency blade is sourced separately.

💎 Benefits

Same layout as the original

Customers get back the 5 functions they use every day, with nothing missing on handover.

Clear part reference

Part number S180144207 on the listing makes it quick to match against the customer's key.

Factory electronics

A genuine Infiniti unit, so the electronics match the original key exactly.

Customer confidence

A factory key reassures customers who want the same part the car was built with.

👥 Who it's for

Automotive locksmiths

Add-key and all-keys-lost jobs on the Infiniti Q50 with OBD key programmers.

Key shops and counter trade

Stock for walk-in spare key requests on the Q50.

Dealers and garages

Replacement keys for used Q50 stock and service customers.

🚗 Compatible vehicles

INFINITIQ502016-2019

Before ordering, match part number S180144207 or FCC ID KR5S180144014 printed on the original key.

📦 What's included

✅ IN THE BOX

✔ 1 × genuine new 5-button smart key with HITAG AES, ID 4A (NCF29A1M) transponder (no original dealer box)

❌ NOT INCLUDED

✘ Emergency insert blade - source separately and cut to the vehicle's key code

✘ Programming to the vehicle - done over OBD with a diagnostic tool

📋 Specifications

📡 REMOTE

FCC ID

KR5S180144014

Frequency

433 MHz

Buttons

5 (incl. panic)

Key type

Smart proximity key, push-button start

7812D-S180204

🔐 TRANSPONDER & BLADE

Transponder chip

HITAG AES, ID 4A (NCF29A1M)

Emergency key blade

Not included

Blade profile

Not published

📦 PHYSICAL & POWER

Battery

CR2032

Weight

60 g

Condition

Genuine · OEM · New

🔢 PART NUMBERS

S180144207 part number

IMPORTANT - READ BEFORE ORDERING

BCM PIN and all keys in one session - Infiniti Intelligent Key registration needs the BCM PIN, calculated from the challenge code the tool reads, and it erases every stored key, so all of the customer's keys must be registered in the same session.

Fitment from the key label - this part number has no published catalogue fitment; the cars and years shown follow the original key it replaces, so match the part number printed on the original key before ordering.

FCC ID is not enough - the same approval number is used on 285E3-4RA0B, 285E3-9HS4A, 285E3-3TP5A, so match part number S180144207 on the original.

Not the 285E3-4HK0A key - a different part number; match S180144207 on the original.

Not the 285E3-4HB0C key - 4-button Q50 / Q60 key without remote start (board S180144204); match S180144207 on the original.

Blade not included - this key is supplied without its emergency insert blade; source a matching blade and cut it to the vehicle's key code.

Genuine factory key - a new genuine Infiniti unit, supplied unprogrammed, without the original dealer box or packaging.

🛠️ Programming instructions

🔌OBD PROGRAMMING - DIAGNOSTIC TOOL REQUIRED

This proximity smart key cannot be learned by hand. It is registered to the car through the OBD-II port with a diagnostic tool.

Compatible tools: the Nissan CONSULT dealer system, or locksmith tools whose software lists this model, such as Launch X431 Immo Elite / X431 Key Programmer.

Add key (spare): connect over OBD, read the BCM challenge and calculate the PIN, then register the new key together with every existing key the customer keeps, because registration erases all stored keys.

All keys lost: the BCM PIN is calculated from the challenge code first, then each key is registered in the same session.

Blade: cut the emergency blade, sourced separately, to the vehicle's key code and test it in the driver's door.

Check coverage first: support depends on the tool's software version and the exact model year. Verify the Infiniti Q50 2016-2019 smart key is in the tool's supported list before the job.