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SOUTH DAKOTA · MAIL-IN SERVICE

Mercedes W164/X164/W251 EIS Repair in South Dakota

Ship your module from Sioux Falls or anywhere in South Dakota — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$399 flat 24-Hour Turnaround ~2-3 day USPS from SD
Text Before You Buy

Why South Dakota customers mail in mercedes w164/x164/w251 eis repair

South Dakota has roughly 1.1 million registered vehicles, and full-size pickups & 4x4 SUVs make up much of what Sioux Falls-area shops and owners mail us. European platforms cluster in Sioux Falls, Rapid City, Aberdeen, and most local Sioux Falls shops sub bench jobs like mercedes w164/x164/w251 eis repair to a specialist instead of tooling up for one car. Cross-region north — about 2-3 days each way.

Metros we serve in South Dakota

Sioux FallsRapid CityAberdeenBrookings

South Dakota at a glance

  • ~1.1M registered vehicles statewide
  • Most common: full-size pickups & 4x4 SUVs
  • South Dakota has no statewide periodic vehicle safety or emissions inspection program.

What you get

  • Component-level repair of the failed EIS (no donor required)
  • Original VIN binding + key pairing preserved
  • Full bench-test with your supplied working key
  • No additional ECU or ESL re-programming needed after install
  • 24-hour bench turnaround
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • Photo of completed bench-test before shipping back

Shipping timeline — South Dakota ↔ Arlington TX

USPS Priority routes north through the Central network; usually 2-3 days given the distance. Typical round-trip from Sioux Falls or anywhere in South Dakota:

  1. Day 0

    You ship

    USPS Priority from SD, ~$12

  2. Day 2-3

    We receive

    Workshop opens + inspects

  3. Day 3

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

South Dakota FAQ

Common questions from customers shipping from South Dakota.

How long does shipping take from South Dakota to your Arlington TX workshop?
USPS Priority Mail from Sioux Falls, SD reaches our Arlington workshop in about 2-3 business days. USPS Priority routes north through the Central network; usually 2-3 days given the distance. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from South Dakota?
USPS Priority flat-rate from South Dakota to Arlington TX runs about $12. The customer pays shipping to us; return shipping back to South Dakota is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Cross-region north — about 2-3 days each way.
Do you accept mercedes w164/x164/w251 eis repair modules from South Dakota?
Yes — we receive modules from Sioux Falls, Rapid City, Aberdeen, Brookings and the rest of South Dakota regularly. With about 1.1 million registered vehicles statewide, full-size pickups & 4x4 SUVs are the bulk of what we see from South Dakota.
Is there a mercedes w164/x164/w251 eis repair shop in Sioux Falls I should use instead?
Most Sioux Falls shops don't keep the bench equipment for mercedes w164/x164/w251 eis repair — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Cross-region north — about 2-3 days each way.
Does South Dakota vehicle inspection or emissions testing affect this service?
South Dakota has no statewide periodic vehicle safety or emissions inspection program. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all South Dakota and federal requirements.
Do I need to send a key?
YES — at least one working key. We bench-test the repaired EIS with your actual key to verify the immobilizer chain handshake works end-to-end. Without a key, we can't verify the repair.
What if no keys work at all?
You need the Key Replacement via EIS service instead ($150). We program a fresh key directly to the EIS in that case.

Full details

See the complete Mercedes W164/X164/W251 EIS Repair service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMaryland

Ship from South Dakota today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Sioux Falls: about a week.

(817) 678-3252