# febi bilstein 103446 Coolant Expansion Tank with Sensor

The febi bilstein 103446 is a coolant expansion tank listed with a sensor for selected Volkswagen Group vehicles. Its stated fitment spans models from VW, Audi, SEAT and Škoda, so confirm the exact vehicle identification and restrictions before ordering.

- [Original product page](https://bargainpostbox.co.uk/product/febi-bilstein-103446-coolant-expansion-tank-sensor)
- [View offer](https://bargainpostbox.co.uk/visit/febi-bilstein-103446-coolant-expansion-tank-sensor)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: febi bilstein
- Model: 103446
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Mechanical Parts
- Price: 19.88 GBP
- Previous price: 25.99 GBP
- Discount: 24%
- Price checked: 2026-11-12T14:40:51.441Z
- Rating: 4.6 / 5
- Reviews: 182

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listed as a coolant expansion tank with sensor for coolant-level monitoring and cooling-system expansion.
- The fitment examples cover selected VW, Audi, SEAT and Škoda models.
- The listing specifies two connections with diameters of 8 mm and 16 mm.

## Pros

- The stated vehicle list and OE comparison number give buyers specific references to check against their existing part.
- The listing supplies dimensions, weight, material and connection details for a pre-purchase fit check.

## Specifications

### Identity
- Brand: febi bilstein
- Model: 103446
### Dimensions and installation
- Mounting type listed: Flange Mount
- Dimensions listed: 20.5 x 20.5 x 15.8 centimetres
- Weight listed: 0.38 Kilograms
### Materials and temperature
- Material: Polypropylene
- Upper temperature rating: 120 Degrees Celsius
### Fitment references
- OE number for comparison: VW \(5Q0 121 407 F\); Audi \(5Q0 121 407 F\); Seat \(5Q0 121 407 F\); Skoda \(5Q0 121 407 F\)
- Listed vehicle examples: VW: Golf 7 \(5G\), Golf 7 \(AU\), Golf 7 \(BQ\), Golf 7 Sportsvan \(AM\), Golf 7 Van \(5G\), Golf 7 Van \(BA\), Golf 7 Variant \(BA\), Golf 7 Variant \(BV\), T-Roc \(A1\), Tiguan \(BT\), Tiguan \(BW\), Tiguan 4motion \(BT\), Tiguan Allspace \(BW\), Touran \(5T\), e-Golf \(BE\); Audi: A3 \(8V\), A3 quattro \(8V\), Q2 \(GA\); Seat: Ateca \(KH\), Ateca 4 motion \(KH\), Leon \(5F\); Skoda: Karoq \(NU\), Kodiaq \(NS\), Kodiaq 4x4 \(NS\), Octavia III \(5E\), Octavia III \(NL\), Octavia III \(NR\), Yeti \(5L\)

## Before you buy

- The manufacturer says to confirm compatibility using the vehicle identification and observe all restrictions. The model list is described as suitable examples, not a guarantee for every vehicle variant.

## A good fit for

- Owners or repairers replacing a coolant expansion tank on a listed VW Group vehicle, after confirming exact compatibility.
- Buyers checking the listed two-connection layout and connection diameters against the part being replaced.

## Less suited to

- Buyers who have not verified fitment by vehicle identification, OE reference and applicable restrictions.
- Vehicles outside the listed examples unless compatibility is confirmed separately.

## Customer feedback

Customer feedback describes the tank as a good replacement that fits well, with one mention of use on a 2014 Audi S3. Those reports are relevant when comparing fitment, but they do not establish compatibility for every listed vehicle variant. The supplied ratings are mostly five-star, alongside some lower ratings, and do not explain the reasons behind those scores.
- Positive themes: Customer feedback mentions good fit and replacement-part suitability.

## Frequently asked questions

### Which vehicles is the febi bilstein 103446 listed for?
Examples include VW Golf 7, T-Roc, Tiguan and Touran, Audi A3 and Q2, SEAT Ateca and Leon, and Škoda Karoq, Kodiaq, Octavia III and Yeti variants. Check your vehicle identification and all fitment restrictions before purchase.
### What connection sizes are specified?
The listing states two connections and gives diameters of 8 mm and 16 mm.
### Does this tank include a sensor?
The product title describes the tank as being with a sensor, and the listing identifies its use as coolant-level monitoring. Confirm the selected listing and supplied component details if the sensor is essential to your repair.

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## Add-ons

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## Images

![febi bilstein 103446 Coolant Expansion Tank with Sensor — 1](https://bargainpostbox.co.uk/i/BrE8Wvc5Z2Pr75vXrOxfJD36a-R2HOEJL-SmYJJ5qbnGGVYLavlxfk04lmk7sR7inO7M2q-jzduU3szgpAnrxR_C4rFfa3-vQxU2znXom6MHva-T0Nx0b-qh.jpg)