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Front control arms / thrust arms (F30/F32 3 & 4 Series): what owners actually paid

All F30/F31/F32/F34/F36 (chassis job, not engine-specific)

Fair-price range (from sourced prices)

DealerNot enough data0 usable sourced price(s); need 3
Independent shopNot enough data0 usable sourced price(s); need 3

How this is derived: the middle 50% (25th–75th percentile) of the USD prices in the table below for that shop type, using full-job totals only. Labor-only, customer-supplied-parts, warranty cost-share, bundled-extra-work and non-USD prices are shown but excluded. A range is only published with at least 3 usable prices. Scope differs between quotes, so read the notes.

Thin data: not enough sourced dealer or independent prices yet. The grader uses the book-time estimate below until more submissions come in.

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Graded against the dealer estimate range and independent estimate range.

What this job should cost near you Draft, under review

National average shown
Dealer estimate$2,714 – $3,4663.8 warranty hrs × 1.5–2 × $255/hr + ($984 list × 1.2–1.4 markup = $1181–$1378 parts) + $80–150 alignment
Independent-shop estimate$1,145 – $1,6483.8 warranty hrs × 1–1.2 × $175/hr + $400–700 parts + $80–150 alignment

xDrive

Dealer estimate$3,020 – $3,8744.6 warranty hrs × 1.5–2 × $255/hr + ($984 list × 1.2–1.4 markup = $1181–$1378 parts) + $80–150 alignment
Independent-shop estimate$1,285 – $1,8164.6 warranty hrs × 1–1.2 × $175/hr + $400–700 parts + $80–150 alignment

xDrive: thrust arm 1.5 hrs per side (RWD 1.1); lower wishbone the same. One alignment included. Hours: BMW warranty labor time, xDrive, per side: thrust arm (front lower forward control arm) 1.5 + front lower wishbone 0.8 = 2.3 hrs × 2 sides = 4.6

Labor rates: national medians of 12 reported BMW dealer rates ($255/hr) and 11 independent BMW-shop rates ($175/hr).

How these estimates work

Dealers look up BMW's own warranty labor time for the job, then for customer-pay work most multiply it by about 1.5 to 2, and charge their hourly rate. Genuine BMW parts are typically marked up 20–40% over BMW list price. So: warranty hours × 1.5–2 × local dealer rate + (genuine list price × 1.2–1.4). (source, source)

Independent shops usually quote straight from a commercial labor guide (Mitchell or ALLDATA), with no multiplier. So: labor-guide hours × local independent rate + parts.

Local rates come from labor rates people have reported for BMW dealers and BMW indie shops in your area. Where we have no report, the national median is scaled by how much auto technicians earn in your state or metro (U.S. Bureau of Labor Statistics, May 2025). Those rates are marked "estimated." Tax, shop fees, fluids and diagnosis aren't included.

BMW warranty time: 3.8 hrs — BMW warranty labor time, RWD, per side: thrust arm (front lower forward control arm) 1.1 + front lower wishbone 0.8 = 1.9 hrs × 2 sides = 3.8
Mitchell/ALLDATA time: not found. Mitchell/ALLDATA time not found publicly. Indie estimate uses these hours x 1.0–1.2.
Dealer parts list basis: Genuine MSRP: tension struts 31126855741 + 31126855742 at $245.79 each, plus left wishbone 31126852991 $245.97 × 2 (no MSRP found for the right wishbone 31126852992; the left price is used) = $983.52. One-time bolts not included; markup 1.2–1.4× (Typical BMW dealer parts markup of 20–40% over list).
Parts: Genuine tension strut L 31126855741 MSRP $245.79 (BMW Parts Deal); Genuine tension strut R 31126855742 MSRP $245.79 (BMW Parts Deal); Genuine wishbone L 31126852991 MSRP $245.97 (OEM Bimmer Parts listing); ~$400 parts / ~$700 genuine incl one-time-use items (same thread). + alignment $80–$150 (same thread)
Main estimate is RWD: thrust arm (front lower forward control arm) and front lower wishbone on both sides, plus one alignment (required after the job).

Missing inputs: indie: Mitchell/ALLDATA time not found.

Symptoms

  • Clunk over bumps
  • Steering wheel shimmy under braking, often 50–70 mph (worn thrust-arm bushings)
  • Uneven front tire wear, wandering

Affected models & years

2012–2019 3 Series (F30/F31/F34), 2014–2020 4 Series (F32/F33/F36)

Quotes vary hugely depending on whether it's bushings only, thrust arms only, or all four front arms, genuine vs OEM-supplier parts, and whether alignment is included. xDrive adds one-time-use axle bolts.

Published estimate (not a paid price): A Los Angeles BMW specialist's marketing page lists front control arm replacement (pair) at $1,800–$2,800 dealer vs $900–$1,600 independent. This is the shop's own published estimate, not a paid price, so it is not used in the range. source

Sourced price points (2)

PriceShopVehicle / scopeLocationYearSource
$1,400 Shop type n/a
quote		 F30
All 4 front arms: labor + alignment only, owner supplying parts · not used in range: labor only		 Houston, TX~2021Bimmerpost F30
$1,300 Shop type n/a
quote		 F30
Same job, other shops ('keep getting quotes around $1,300'), labor + alignment only · not used in range: labor only		 Houston, TX~2021Bimmerpost F30

Greyed rows are shown for context and excluded from the range. Years are approximate (date of the post).

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Anonymous. Helps the next owner. Reviewed before publishing.

Parts for this job

Placeholder · affiliate link not set upECS TuningParts for Front control arms / thrust arms (F30/F32 3 & 4 Series)
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Placeholder · affiliate link not set upPelican PartsParts for Front control arms / thrust arms (F30/F32 3 & 4 Series)
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Placeholder · affiliate link not set upTurner MotorsportParts for Front control arms / thrust arms (F30/F32 3 & 4 Series)
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