Dinan's heat exchanger replaces the front mounted cooler in the factory air to water charge cooling circuit with a 48mm thick core in place of the 27mm OEM core, giving 78% more heat transfer surface area. Unique L shaped end tanks accommodate the thicker core and add thermal mass, and every unit is 100% TIG welded and pressure tested. Dinan recorded an average 8 degree drop in intake air temperature and up to 15 degrees over 15 successive wide open throttle pulls, reducing heat soak and the tendency to go into limp mode.
Specifications
| Type | Charge air cooling heat exchanger (air to water circuit) |
| Core Thickness | 48 mm (stock 27 mm) |
| Surface Area | 78% more than stock |
| Construction | L shaped end tanks, 100% TIG welded, pressure tested |
| Claimed Result | Avg 8 degree / max 15 degree lower IAT over 15 WOT pulls |
| Includes | Installation hardware, incl. xDrive transmission oil cooler brackets |
| Quantity | 1 |
| Part Number | D780-0002 |
| Warranty | Dinan limited: balance of 4 yr / 50,000 mi new car warranty, or 2 yr / unlimited miles |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2021 | BMW | 230i | Base |
| 2017-2021 | BMW | 230i xDrive | Base |
| 2017-2018 | BMW | 330i | Base |
| 2017-2019 | BMW | 330i GT xDrive | Base |
| 2017-2019 | BMW | 330i xDrive | Base |
| 2016-2018 | BMW | 340i | Base |
| 2017-2019 | BMW | 340i GT xDrive | Base |
| 2016-2018 | BMW | 340i xDrive | Base |
| 2017-2020 | BMW | 430i | Base |
| 2017-2020 | BMW | 430i Gran Coupe | Base |
| 2017-2020 | BMW | 430i xDrive | Base |
| 2017-2020 | BMW | 430i xDrive Gran Coupe | Base |
| 2017-2020 | BMW | 440i | Base |
| 2017-2020 | BMW | 440i Gran Coupe | Base |
| 2017-2020 | BMW | 440i xDrive | Base |
| 2017-2020 | BMW | 440i xDrive Gran Coupe | Base |
| 2017-2021 | BMW | M240i | Base |
| 2017-2021 | BMW | M240i xDrive | Base |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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