Hi
My car started loosing all of the coolant as it reaches operational temperature. It suddenly just started today. I have located plastic part from where coolant is running down and steam coming out too.
Please help me identify what is this part by pictures.

3.jpg - Google Drive

2.jpg - Google Drive

1.jpg - Google Drive

Vag com codes are

VAG-COM Version: Release 409.1-S



Chassis Type: 1J - VW G/J/B Mk4

Scan: 01,02,03,08,16,15,17,19,22,35,46,56

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Address 01: Engine

**Controller: 06A 906 033 AF

**Component: SIMOS33 1.6l 2V 00AT4083

**Coding: 00033

**Shop #: WSC 01271

**WVWZZZ1JZ2W481205 ****VWZ6Z0A3820669

2 Faults Found:

16706 - Engine Speed Sensor (G28): No Signal

***********P0322 - 35-10 - - - Intermittent

17698 - Coolant Temp Sensor at Radiator Outlet (G83): Signal too Small

***********P1290 - 35-00 - -

Readiness: 0010 0001


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Address 02: Auto Trans

**Controller: 01M 927 733 JH

**Component: AG4 Getriebe 01M ***4830

**Coding: 00000

**Shop #: WSC 00000

No fault code found.


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Address 03: ABS Brakes

**Controller: 1C0 907 379 J

**Component: ABS FRONT MK60 *****0103

**Coding: 0001025

**Shop #: WSC 01271

1 Fault Found:

01314 - Engine Control Module

***********013 - Check DTC Memory - Intermittent


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Skipping Address 15-Airbags


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Address 17: Instruments

**Controller: 1J0 920 806 C

**Component: KOMBI+WEGFAHRS. RB8 V17

**Coding: 03722

**Shop #: WSC 00000

**WVWZZZ1JZ2W481205 ****VWZ6Z0A3820669

No fault code found.


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Address 19: CAN Gateway

**Controller: 6N0 909 901

**Component: Gateway K<->CAN ***0001

**Coding: 00006

**Shop #: WSC 01271

No fault code found.


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Address 46: Central Conv.

**Controller: 1C0 959 799

**Component: 1Z Komfortgerát HLO 0001

**Coding: 00259

**Shop #: WSC 01271

1 Fault Found:

00929 - Locking Module for Central Locking: Front Passenger Side (F221)

***********27-00 - Implausible Signal


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