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Description
Cap Expansion Tank for BMW 3, 3 Compact & 5 - 400043Vehicle Fitment & Part Details The Cap Expansion Tank is listed for the BMW 3 (1982 1992). Pressure: 1. 4 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN engine. Key Details SKU 400043 Component Cap Expansion Tank Specs Pressure: 1. 4 Bar Primary Fitment BMW 3 (1982 1992) Listing Highlights Listed for selected BMW applications shown in the fitment table. Pressure: 1. 4 Bar. Vehicle Fitment Includes 56 supplied
Vehicle Fitment & Part Details
The Cap Expansion Tank is listed for the BMW 3 (1982-1992). Pressure: 1.4 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN/engine.
Key Details
- SKU
- 400043
- Component
- Cap Expansion Tank
- Specs
- Pressure: 1.4 Bar
- Primary Fitment
- BMW 3 (1982-1992)
Listing Highlights
- Listed for selected BMW applications shown in the fitment table.
- Pressure: 1.4 Bar.
Vehicle Fitment
Includes 56 supplied applications covering BMW. Use the full table below to confirm model, chassis, year range, engine and power before ordering.
View Full Vehicle Fitment (56 applications)
| Make | Model | Chassis | Years | Engine | Power |
|---|---|---|---|---|---|
| BMW | 3 | E30 | 1982-1992 | 318 i M40 B18 184E1 | 83 kW / 113 HP |
| BMW | 3 | E30 | 1982-1992 | 318 i M40 B18 184E1 | 85 kW / 115 HP |
| BMW | 3 | E30 | 1982-1992 | 320 i M20 B20 206EB | 92 kW / 125 HP |
| BMW | 3 | E30 | 1982-1992 | 320 i M20 B20 206KA | 95 kW / 129 HP |
| BMW | 3 | E30 | 1982-1992 | 325 i M20 B25 256E1; M20 B25 256E2 | 126 kW / 171 HP |
| BMW | 3 | E30 | 1982-1992 | 325 i M20 B25 256E1; M20 B25 256E2; M20 B25 256EX; M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 3 | E30 | 1982-1992 | 325 i X M20 B25 256E1; M20 B25 256E2; M20 B25 256EX; M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 3 | E30 | 1982-1992 | 325 i X M20 B25 256E1; M20 B25 256E2; M20 B25 256EX; M20 B25 256K1 | 126 kW / 171 HP |
| BMW | 3 | E36 | 1990-1998 | 316 i M40 B16 164E1 | 73 kW / 100 HP |
| BMW | 3 | E36 | 1990-1998 | 318 i M40 B18 184E1 | 83 kW / 113 HP |
| BMW | 3 | E36 | 1990-1998 | 318 tds M41 D17 174T1 | 66 kW / 90 HP |
| BMW | 3 | E36 | 1990-1998 | 325 td M51 D25 256T1 | 85 kW / 115 HP |
| BMW | 3 | E36 | 1990-1998 | 325 tds M51 D25 256T1 | 105 kW / 143 HP |
| BMW | 3 | E46 | 1997-2005 | 320 d M47 D20 204D1 | 100 kW / 136 HP |
| BMW | 3 | E46 | 1997-2005 | 320 d M47 D20 204D4 | 110 kW / 150 HP |
| BMW | 3 | E46 | 1997-2005 | 330 d M57 D30 306D1 | 135 kW / 184 HP |
| BMW | 3 | E46 | 1997-2005 | 330 d M57 D30 306D2 | 150 kW / 204 HP |
| BMW | 3 Compact | E36 | 1994-2000 | 318 tds M41 D17 174T1 | 66 kW / 90 HP |
| BMW | 3 Convertible | E30 | 1982-1993 | 318 i M40 B18 184E1 | 83 kW / 113 HP |
| BMW | 3 Convertible | E30 | 1982-1993 | 320 i M20 B20 206KA | 95 kW / 129 HP |
| BMW | 3 Convertible | E30 | 1982-1993 | 325 i M20 B25 256E1; M20 B25 256E2 | 126 kW / 171 HP |
| BMW | 3 Convertible | E30 | 1982-1993 | 325 i M20 B25 256E2; M20 B25 256EX; M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 316 i M40 B16 164E1 | 73 kW / 100 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 318 i M40 B18 184E1 | 83 kW / 113 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 318 i M40 B18 184E1 | 85 kW / 115 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 320 i M20 B20 206KA | 95 kW / 129 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 325 i M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 3 Touring | E30 | 1987-1994 | 325 i X M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 3 Touring | E36 | 1995-1999 | 318 tds M41 D17 174T1 | 66 kW / 90 HP |
| BMW | 3 Touring | E36 | 1995-1999 | 325 tds M51 D25 256T1 | 105 kW / 143 HP |
| BMW | 3 Touring | E46 | 1999-2005 | 320 d M47 D20 204D1 | 100 kW / 136 HP |
| BMW | 3 Touring | E46 | 1999-2005 | 320 d M47 D20 204D4 | 110 kW / 150 HP |
| BMW | 3 Touring | E46 | 1999-2005 | 330 d M57 D30 306D1 | 135 kW / 184 HP |
| BMW | 3 Touring | E46 | 1999-2005 | 330 d M57 D30 306D2 | 150 kW / 204 HP |
| BMW | 5 | E34 | 1987-1995 | 518 i M40 B18 184E1 | 83 kW / 113 HP |
| BMW | 5 | E34 | 1987-1995 | 520 i M20 B20 206KA | 95 kW / 129 HP |
| BMW | 5 | E34 | 1987-1995 | 525 i M20 B25 256K1 | 125 kW / 170 HP |
| BMW | 5 | E39 | 1995-2003 | 525 d M57 D25 256D1 | 120 kW / 163 HP |
| BMW | 5 | E39 | 1995-2003 | 530 d M57 D30 306D1 | 142 kW / 193 HP |
| BMW | 5 | E60 | 2001-2010 | 520 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 5 | E60 | 2001-2010 | 530 d M57 D30 306D2 | 160 kW / 218 HP |
| BMW | 5 | E60 | 2001-2010 | 530 d M57 D30 306D2; M57 D30 306D3 | 155 kW / 211 HP |
| BMW | 5 | E60 | 2001-2010 | 530 d M57 D30 306D3 | 173 kW / 235 HP |
| BMW | 5 Touring | E39 | 1996-2004 | 530 d M57 D30 306D1 | 142 kW / 193 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 520 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 530 d M57 D30 306D2 | 160 kW / 218 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 530 d M57 D30 306D3 | 173 kW / 235 HP |
| BMW | 7 | E65, E66, E67 | 2001-2009 | 730 d M57 D30 306D2 | 160 kW / 218 HP |
| BMW | 7 | E65, E66, E67 | 2001-2009 | 730 d M57 D30 306D2; M57 D30 306D3 | 155 kW / 211 HP |
| BMW | X3 | E83 | 2003-2011 | 2.0 d M47 D20 204D4 | 110 kW / 150 HP |
| BMW | X3 | E83 | 2003-2011 | 2.0 sd N47 D20 A | 130 kW / 177 HP |
| BMW | X3 | E83 | 2003-2011 | 3.0 d M57 D30 306D3 | 160 kW / 218 HP |
| BMW | X3 | E83 | 2003-2011 | xDrive 20 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | X3 | E83 | 2003-2011 | xDrive 30 d M57 D30 306D3 | 160 kW / 218 HP |
| BMW | X5 | E53 | 2000-2006 | 3.0 d M57 D30 306D1 | 135 kW / 184 HP |
| BMW | X5 | E53 | 2000-2006 | 3.0 d M57 D30 306D2 | 160 kW / 218 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 BMW 3?
This part (400043) 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
4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Favorite toddler toothpaste
Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
I bought this for my 18month old who has all his teeth already. It works great. The smell is pleasant, the taste isn’t harsh, and the texture isn’t as thick as most toothpastes - perfect for a toddler. I’ve been using this for a couple of months now and have not noticed any irritation. He enjoys it about as much as any 18 month will, ha! It’s just as effective as fluorinated toothpaste. You get what you pay for. It’s a big tube!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 4
Good flavor, not as full of tubes as I expected.
Size: 4 Ounce (Pack of 2), Set name: G. Orange Cream, Ela Mint
My kids have LOVED brushing their teeth with this. They had been fighting to let us brush for a while, so it was nice to find something they liked. My husband and I have been using the mint flavor, and it’s been good as well. We like the ingredients, and the texture is nice. The tubes both felt like they could have fit more, so I took off a star for size/value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
★★★★★ 5
Very effective!
Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
I switched my son to this toothpaste and it has been great! I haven’t noticed whitening, but his teeth do look good and clean after he has brushed. He loves the flavor. And he is one to complain about “spicy” toothpaste. This toothpaste has never been whined about in my household. In fact, switching to this toothpaste has made brushing his teeth simpler because he enjoys the flavor so much. I have noticed it doesn’t foam up like other toothpaste’s do.
Another side story, and probably the biggest thing, I think this is actually shrinking my sons cavities. His pediatric dentist told me he would need fillings before his teeth could fall out at 12 (12 year molars). I saw the cavities on the xrays. A year later, the cavities are smaller. And the dentist said if things can maintain this way, there will be no need for fillings! He does brush morning and night, and often after lunch because we homeschool and he has that ability. But I’m just thrilled that my son could potentially avoid this procedure!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Love this stuff! Both toddler and mom approved
Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
I'm a repeat buyer! My toddler loves the taste and I love the ingredients. Boka is an awesome brand and I feel safe giving it to my kids and knowing their teeth are being cleaned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Love
Size: 4 Ounce (Pack of 2), Set name: G. Orange Cream, Ela Mint
Great toothpaste, kids loves the orange, very subtle taste not too strong. The mint is great tasting and mild. Teeth feel very clean. And best of all NO TOXIC FLUORIDE!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026