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Description
Cap Expansion Tank for Audi A4 / S4 B6, Volkswagen Beetle & Porsche Cayenne - 112306Vehicle Fitment & Part Details The Cap Expansion Tank is listed for the Audi A4 S4 B6 (2001 2005) and other Volkswagen and Porsche applications. Pressure: 1. 5 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN engine. Key Details SKU 112306 Component Cap Expansion Tank Specs Pressure: 1. 5 Bar Primary Fitment Audi A4 S4 B6 (2001 2005) Listing Highlights Listed for selected Audi, Volkswagen, Porsche applications shown in the
Vehicle Fitment & Part Details
The Cap Expansion Tank is listed for the Audi A4 / S4 B6 (2001-2005) and other Volkswagen and Porsche applications. Pressure: 1.5 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN/engine.
Key Details
- SKU
- 112306
- Component
- Cap Expansion Tank
- Specs
- Pressure: 1.5 Bar
- Primary Fitment
- Audi A4 / S4 B6 (2001-2005)
Listing Highlights
- Listed for selected Audi, Volkswagen, Porsche applications shown in the fitment table.
- Pressure: 1.5 Bar.
Vehicle Fitment
Includes 75 supplied applications covering Audi and Porsche. An additional 56 applications are not shown here due to listing-length limits - see the live product listing for the complete fitment list. Use the full table below to confirm model, chassis, year range, engine and power before ordering.
View Full Vehicle Fitment (75 applications)
| Make | Model | Chassis | Years | Engine | Power |
|---|---|---|---|---|---|
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 1.8 T BEX | 140 kW / 190 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 1.8 T BFB | 120 kW / 163 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 1.9 TDI AVF; AWX | 96 kW / 130 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 2.0 ALT | 96 kW / 130 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 2.4 BDV | 125 kW / 170 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 2.5 TDI quattro AKE; BAU; BDH | 132 kW / 180 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 3.0 ASN | 162 kW / 220 HP |
| Audi | A4 / S4 B6 | 8E2 | 2001-2005 | 3.0 quattro ASN | 162 kW / 220 HP |
| Audi | A4 / S4 B6 Avant | 8E5 | 2002-2005 | 1.8 T BEX | 140 kW / 190 HP |
| Audi | A4 / S4 B6 Avant | 8E5 | 2002-2005 | 1.8 T BFB | 120 kW / 163 HP |
| Audi | A4 / S4 B6 Avant | 8E5 | 2002-2005 | 1.9 TDI AVF; AWX | 96 kW / 130 HP |
| Audi | A4 / S4 B6 Avant | 8E5 | 2002-2005 | 2.5 TDI quattro AKE; BAU; BDH | 132 kW / 180 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 1.8 ADR; APT; ARG; AVV | 92 kW / 125 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 1.8 AFY | 85 kW / 115 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 1.8 T AEB; ANB; APU; ARK; AWT | 110 kW / 150 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.4 AGA; ALF; AML; APS; ARJ | 121 kW / 165 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.4 AJG; AMM; APZ | 120 kW / 163 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.5 TDI AFB; AKN | 110 kW / 150 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.6 ABC | 110 kW / 150 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.8 ACK; AHA; ALG; AMX; APR; AQD; ATQ | 142 kW / 193 HP |
| Audi | A4 B5 | 8D2 | 1995-2001 | 2.8 quattro ACK; AHA; ALG; AMX; APR; AQD; ATQ | 142 kW / 193 HP |
| Audi | A4 B5 Avant | 8D5 | 1997-2001 | 1.8 ADR; APT; ARG; AVV | 92 kW / 125 HP |
| Audi | A4 B5 Avant | 8D5 | 1997-2001 | 1.8 T AEB; ANB; APU; ARK; AWT | 110 kW / 150 HP |
| Audi | A4 B5 Avant | 8D5 | 1997-2001 | 2.4 AGA; ALF; AML; APS; ARJ | 121 kW / 165 HP |
| Audi | A4 B5 Avant | 8D5 | 1997-2001 | 2.6 ABC | 110 kW / 150 HP |
| Audi | A4 B5 Avant | 8D5 | 1997-2001 | 2.8 quattro ACK; AHA; ALG; AMX; APR; AQD; ATQ | 142 kW / 193 HP |
| Audi | A6 / S6 C4 | 4A2 | 1994-1998 | 2.6 ABC | 110 kW / 150 HP |
| Audi | A6 / S6 C4 | 4A2 | 1994-1998 | 2.8 AAH; AFC | 128 kW / 174 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 1.8 T AEB; ANB; APU; ARK; AWT | 110 kW / 150 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 1.9 TDI AVF; AWX | 96 kW / 130 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 2.4 AGA; ALF; AML; APS; ARJ | 121 kW / 165 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 2.4 BDV | 125 kW / 170 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 2.5 TDI BCZ; BDG; BFC | 120 kW / 163 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 2.7 T quattro ARE; BES | 184 kW / 250 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 2.8 quattro ACK; ALG; AMX; APR; AQD | 142 kW / 193 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 3.0 ASN | 162 kW / 220 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 3.0 quattro ASN | 162 kW / 220 HP |
| Audi | A6 / S6 C5 | 4B2, 4B4 | 1997-2004 | 4.2 quattro ARS; ART; ASG; AWN | 220 kW / 299 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.4 AGA; ALF; AML; APS; ARJ | 121 kW / 165 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.4 BDV | 125 kW / 170 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.5 TDI BCZ; BDG; BFC | 120 kW / 163 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.5 TDI Allroad quattro AKE; BAU; BDH | 132 kW / 180 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.7 T Allroad quattro ARE; BES | 184 kW / 250 HP |
| Audi | A6 / S6 C5 Avant | 4B5, 4B6 | 1998-2006 | 2.8 quattro ACK; ALG; AMX; APR; AQD; ATQ | 142 kW / 193 HP |
| Audi | A6 C4 Avant | 4A5 | 1994-1998 | 2.6 ABC | 110 kW / 150 HP |
| Audi | A6 C4 Avant | 4A5 | 1994-1998 | 2.6 ACZ | 102 kW / 139 HP |
| Audi | Q7 | 4LB | 2006-2015 | 3.0 TDI quattro BUG | 171 kW / 233 HP |
| Audi | Q7 | 4LB | 2006-2015 | 3.0 TDI quattro CASA; CCMA; CJGA; CNRB | 176 kW / 240 HP |
| Audi | Q7 | 4LB | 2006-2015 | 3.0 TDI quattro CJGD; CLZB; CRCA | 180 kW / 245 HP |
| Audi | Q7 | 4LB | 2006-2015 | 3.0 TFSI quattro CJTB; CJWB; CNAA; CTWA | 245 kW / 333 HP |
| Audi | Q7 | 4LB | 2006-2015 | 3.6 FSI quattro BHK | 206 kW / 280 HP |
| Audi | Q7 | 4LB | 2006-2015 | 4.2 FSI quattro BAR | 257 kW / 350 HP |
| Audi | Q7 | 4LB | 2006-2015 | 4.2 TDI quattro BTR | 240 kW / 326 HP |
| Audi | Q7 | 4LB | 2006-2015 | 4.2 TDI quattro CCFA; CCFC | 250 kW / 340 HP |
| Audi | Q7 | 4LB | 2006-2015 | 6.0 TDI quattro CCGA | 368 kW / 500 HP |
| Audi | TT | 8N3 | 1998-2007 | 1.8 T quattro APX; BAM; BEA | 165 kW / 224 HP |
| Audi | TT | 8N3 | 1998-2007 | 3.2 VR6 quattro BHE | 184 kW / 250 HP |
| Audi | TT Roadster | 8N9 | 1999-2007 | 1.8 T quattro APX; BAM; BEA | 165 kW / 224 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | 3.0 TDI M 05.9D | 176 kW / 240 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | 3.2 M02.2Y | 177 kW / 241 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | 3.2 M02.2Y | 184 kW / 250 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | 3.6 M 55.01 | 213 kW / 290 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | GTS 4.8 M 48.01 | 298 kW / 405 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | S 4.5 M 48.00 | 250 kW / 340 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | S 4.8 M 48.01 | 283 kW / 385 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo 4.5 M 48.50 | 331 kW / 450 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo S 4.5 M 48.50S | 368 kW / 500 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo S 4.5 M 48.50T | 383 kW / 521 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo S 4.8 M 48.51 | 368 kW / 500 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo S 4.8 M 48.51 | 397 kW / 540 HP |
| Porsche | CAYENNE | 9PA | 2002-2010 | Turbo S 4.8 M 48.51 | 404 kW / 550 HP |
| Porsche | PANAMERA | 970 | 2009-2016 | 3.0 4S MCW.DA | 309 kW / 420 HP |
| Porsche | PANAMERA | 970 | 2009-2016 | 3.0 D MCR.CC | 184 kW / 250 HP |
| Porsche | PANAMERA | 970 | 2009-2016 | 3.0 D MCW.JA | 221 kW / 300 HP |
| Porsche | PANAMERA | 970 | 2009-2016 | 3.0 S MCW.DA | 309 kW / 420 HP |
Fitment Notes
- Always match vehicle details before ordering. Verify VIN/engine.
Compatibility Verification Notes
- Confirm compatibility using VIN, engine code, chassis / platform, OE reference and original part comparison before ordering.
- Match the supplied fitment details to your vehicle, including model, year range and any listed engine or chassis information.
- Fitment data may vary by production date, market, import history and engine variant.
- This listing is for part identification and compatibility checking only. Installation must be carried out according to the vehicle manufacturer's service information by a suitably qualified person.
Common Questions
Will the Cap Expansion Tank fit my Audi A4 / S4 B6?
This part (112306) is listed for the fitments shown on this page. Confirm by matching the fitment details. Verify VIN/engine.
How do I confirm fitment if there are multiple variants?
Compare the supplied fitment details, original part details and any listed variant information before ordering. Verify VIN/engine.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Perfect for ball demolishers
Size: Medium
The dogs love the chuck it brand. I don’t know what it’s made of but they go crazy over them. Will not play with another ball. Wonder if it’s “laced” with an addictive scent. Have pits. Very durable. Not able to chew to pieces. Last for about 6 months before there is a small break. I keep a back up because when the ball goes missing the house is in chaos. 😆 🤪
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
Most durable ball!
Size: Medium
This are my dogs fav ball 😍 they last forever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 4
Chuckit medium rebound balls
Size: Medium
My 8 month old German shepherd dog loves these balls. They are easy to throw, they bounce great, they are very chewable! She keeps one in her mouth most of the time. It satisfies her need to chew and she does not chew other things. She drops it in the water and lets the hole fill up and drinks that way. The only problem that has caused is suction in her mouth and difficulty in dislodging it for her. However, she would be lost without it!
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Reviewed in the United States on April 19, 2023
★★★★★ 5
These are definitely indestructible
Size: Medium
Both of my dogs can destroy a ball in a matter of minutes if I let them play with them (supervised) as is. Well not with these balls. They are the ONLY ones I have found that are 100% indestructible. Please only let your dogs play with these as a toy when supervised though. They go really far when throwing them, so both dogs get a good amount of running and exercise with these. I also bought these because they have the hole in the middle of the ball which is very important in the event that a dog gets one stuck at the back of their throat. This allows them to breath unlike those without this hold. It's an unlikely event, but as dog owners, we all need to be aware of this and educate ourselves on what to do if this SHOULD happen. This isn't a scare tactic, nor a reflection of this particular brand, it can happen with any type of ball. My two dogs are about 45ish lbs and the size is perfect for them, I don't want anything smaller than this. They love them. There is no annoying squeak. Really easy to wash after use. Some balls take forever to get the slimy saliva off, but these don't.
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Reviewed in the United States on September 25, 2025
★★★★★ 5
He loves this ball
Size: Medium, Size: Medium
My dog loves this ball. It’s the perfect size, he enjoys playing fetch and this ball has been his fav one. Thank you guys for making my lil one happy
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Reviewed in the United States on May 2, 2026