How does the Ignition Coil and distributorless ignition system work, and what factors control the ignition timing on 2005 BMW X5?

Direct injection refers to the fact that XS engines have a multipoint electronic fuel injection, and are equipped with a distributorless ignition system with one coil for each cylinder. These coils are individual with control and feedback from the ECM, whereas power is provided through the unloader relay that intends close when the IGN is switched 'ON' to apply voltage to the coils, which are switched on at the negative end by the ECM. The ignition timing is electronically mapped and cannot be physically adjusted The ECM, controls the timing by using data such as the engine load, engine speed, coolant temperature, knock sensor data, and intake air temperature. A 3 D map is stored in the ECM whereby, during cranking the crank shaft signal sets the initial ignition and then depending with the operating conditions of the engine the ECM adjusts the timing of ignition accordingly.

Genuine 2005 BMW X5 Ignition Coil

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7 Ignition Coils found

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2005 BMW X5 Ignition Coil
Part Number: 12138616153
$67.12 MSRP: $100.05
You Save: $32.93 (33%)
Ships in 1 Business Day
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Product Specifications
- Replaces: 12-13-7-551-049, 12-13-1-712-219, 12-13-7-571-643, 12-13-7-594-938, 12-13-7-594-937, 12-13-7-594-596, 12-13-7-562-744, 12-13-7-575-010
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12138616153
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2005 BMW X5 Submodels:
- 3.0i(E53), 3.0si(E70), 4.8i(E70), sDrive35i(F15), xDrive30i(E70), xDrive35i(E70), xDrive35i(F15), xDrive40e(F15), xDrive48i(E70), xDrive50i(E70)
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2005 BMW X5 Ignition Coil
Part Number: 12135A06753
$67.12 MSRP: $100.05
You Save: $32.93 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 12-13-8-657-273
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12135A06753
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2005 BMW X5 Submodels:
- 4.4i(E53), 4.8i(E70), 4.8is(E53), xDrive48i(E70), xDrive50i(E70)
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2005 BMW X5 Ignition Coil
Part Number: 12131703228
$95.22 MSRP: $108.88
You Save: $13.66 (13%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12131703228
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2005 BMW X5 Submodels:
- 3.0i(E53), 4.4i(E53), 4.6is(E53)
View related parts
2005 BMW X5 Ignition Coil
Part Number: 12138657273
$67.12 MSRP: $100.05
You Save: $32.93 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 12135A06753
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12138657273
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2005 BMW X5 Submodels:
- 4.4i(E53), 4.8is(E53)
View related parts
2005 BMW X5 Ignition Coils
Part Number: 12131712219
$67.12 MSRP: $100.05
You Save: $32.93 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Ignition Coil
- Replaced by: 12138616153
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12131712219
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
More Info
Fits the following 2005 BMW X5 Submodels:
- 3.0i(E53)
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2005 BMW X5 Ignition Coil
Part Number: 12137599219
$95.22 MSRP: $108.88
You Save: $13.66 (13%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly
- Replaces: 12-13-9-067-830, 12-13-1-748-018
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12137599219
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
More Info
Fits the following 2005 BMW X5 Submodels:
- 3.0i(E53), 4.4i(E53), 4.6is(E53)
View related parts
2005 BMW X5 Ignition Coil
Part Number: 12131748018
$95.22 MSRP: $108.88
You Save: $13.66 (13%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 12137599219
- Item Weight: 1.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12131748018
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2005 BMW X5 Submodels:
- 3.0i(E53), 4.4i(E53), 4.6is(E53)

2005 BMW X5 Ignition Coil

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2005 BMW X5 Ignition Coil Parts Questions & Experts Answers

Q: How does the Ignition Coil and distributorless ignition system work, and what factors control the ignition timing on 2005 BMW X5?
A: Direct injection refers to the fact that XS engines have a multipoint electronic fuel injection, and are equipped with a distributorless ignition system with one coil for each cylinder. These coils are individual with control and feedback from the ECM, whereas power is provided through the unloader relay that intends close when the IGN is switched 'ON' to apply voltage to the coils, which are switched on at the negative end by the ECM. The ignition timing is electronically mapped and cannot be physically adjusted The ECM, controls the timing by using data such as the engine load, engine speed, coolant temperature, knock sensor data, and intake air temperature. A 3 D map is stored in the ECM whereby, during cranking the crank shaft signal sets the initial ignition and then depending with the operating conditions of the engine the ECM adjusts the timing of ignition accordingly.